Browse the comments section of recent news articles online. What are some of the most common fallacies committed?
The Ad Hominem fallacy is also very much prevalent. From my observation, fake/troll accounts are more likely to employ this particular fallacy because they do not fear reprimand.
I've also noted the use of the fallacy of appeal to ignorance wherein people would participate in denialism to debunk an otherwise valid claim.
Articles pointing out flaws in the current and past administrations are often countered by supporters and trolls by diverting the issue, specifically by pointing out mistakes of the opposition. It is a common fallacy because rather than addressing the issue, someone's position is misdirected and overexaggerated for the benefit of the other argument. For example, when a critic calls for accountability on the atrocities of Martial Law, a troll would respond by stating how the critic is a fanatic of the opposition and that they have no problems with killings made under said opposition's term. This would then transition to ad hominem and several arguments appealing to ignorance.
Ad hominem is depicted by the attack on the personal lives of medical professionals, vaccine advocates, and even vaccine manufacturing companies. Often, notions about how they only seek to earn money are thrown around, and even some points on their looks are said instead of logical arguments on the issue being discussed.
Appeal to ignorance can be observed when comments like the COVID-19 virus is not real and is actually only the flu is propagated. Just because it cannot be physically seen or it exhibits flu-like symptoms, people are quick to dismiss what has clearly been well-proven.
In a political news post of activists protesting in celebration of Andres Bonifacio’s birthday, there were a lot of comments baiting the opponents, often labelling these militant groups as “salot” or “bobo” and going to the extent of implying death threats. These are clear examples of ad hominem (or baiting the opponent) since these are personal attacks and criticisms that do not have a direct correlation with the issue at hand.
The fallacy of Ignoring the Issue could also be seen in comments sections where discussions are taking place, but even though Person A was able to refute the arguments of Person B logically, Person B did not acknowledge this and moved forward in defending their own stance.

The screenshot above is a portion of the comment section on a news article about Kabataan Party-list Rep. Raoul Manuel's call on Filipino youth to reject the House Bill (HB) 6486, or the “National Citizens Service Training (NCST) Program Act.
Looking at the screenshot, some people are against the call of Rep. Manuel. However, most of the arguments contain fallacies. From what I observed, most of them used Ad Hominem and Hasty Generalization. Aside from the personal attacks to Rep. Manuel, most of these people generalize that those who criticize the government like Rep. Manuel are members of a terrorist group.
With the comments we see in news agency posts daily, we can see most of these fallacies present in different ways, but usually, these fallacies used may vary depending on the news posted.
For example, the attached image below was a screen capture of the comment section in INQUIRER.net's Facebook post on ACT Teachers Partylist Rep. France Castro's warning to remain vigilant despite the announcement of pulling out the SSS and GSIS from the originally proposed source of funding for the Maharlika Investment Fund.
Most comments included fallacies in reasoning, particularly using irrelevant arguments, avoiding the issue, and ad hominem. Most comments included irrelevant arguments and ad hominem that targets the speaker, such as red-tagging Rep. Castro and accusing her instead of presenting necessary arguments related to her stance on the Maharlika Investment Fund. The red-tagging comments are in no way pertinent to the issue and also did not present anything as a basis or proof of what they are arguing against. Aside from these comments, you can see a comment referencing to Atty. Robredo and that she should offer a better idea. However, we can see that their argument is completely unrelated to the discussion regarding Maharlika Investment Fund since Atty. Robredo is not directly involved in the said issue and she is not part of the legislation.
I'm not sure if most are the work of trolls, but apparently, some Filipinos do not really get what the article is about. Some argue about "not having the right evidence" or that the evidence presented is fake and manipulated in favor of a particular political party. Some completely ignore the issue and talk about another topic to avoid healthy discussions.
I also find it kind of funny that when the news article is not in favor of their candidate, they tend to dismiss the information presented in it, claiming that the website cannot be trusted and such, but when the news favors them, they easily switch as if they did not have a distrust to the website anymore.
Among the different categories of fallacies, the most prevalent one in the comments section of news article is ad hominem. Perhaps, when we say ad hominem, most of us think of the slanderous comments of those who support BBM, but upon observation, it goes both ways. It's saddening to see that people who claim that they're more educated resort to ad hominem instead of doing their best to provide more arguments because ad hominem offends the person they're conversing with which possibly leads to the person being hurt and reject the valid arguments.
The second and last was about drag queens Marina Summers, Viñas DeLuxe, and Eva Le Queen during Vice Ganda's UnkabogaBall in Cebu. Their getup were memorable because it held powerful messages that sadly not everyone thought of to be the same. Instead, some of these people personaly attacked these queens, committing argumentum ad hominem. Some mentioned that they were only attention-seekers and wanted to be the talk of the town. Some called them crazy, toxic, and demonic, always trying to make the country's past bad, when it is, in fact, horrible.

Genetic fallacy is very common in online news articles especially those that are posted on Facebook. A good example would be when people equate a "Leni-led" project as bad, elitist, and pro-Aquino, while a "Marcos-led" project is good and and act to save the nation. People base the assumptions on the origin of the idea to determine its nature.
Another type of fallacy usually read online is the Straw Man fallacy in which people oversimplify the viewpoint and then attacks the hollow argment. For instance, every time a news article about the passage of the SOGIE Equality Bill, comments on the post would state that the passage of the bill is just an attack on "straight rights" and religion.