What flawed argument are you referring to? The admins of this site claimed they had to block those communities for fear of legal repercussions. If we all agree that discussing piracy isn't illegal, and there's no examples of them breaking their own rules against linking to infringing content, then from where is the danger of a lawsuit coming from? It makes no sense and feels much more like an excuse that was concocted after-the-fact to rationalize it.

Simply “discussing” child pornography is fine too?

You just compared Piracy and CSAM... didn't you... 🤦‍♀️

FYI for those who don't know this is called a strawman argument, they're often used by people who don't have a valid point to make or aren't capable of formulating a reasonable counterargument because they can derail the conversation and change the argument.

In this case comparing Piracy and CSAM doesnb't make sense because they are extremely different types of crimes and also differ greatly in severity. CSAM is much more severe than Piracy in any form, because it is sexual abuse material or depictions of children (either real or fabricated) it is a very heinous and awful crime. It represents significant irrevocable harm to a person either physically, emotionally, or many times both.

Piracy on the other hand is infringing on someone's copyright, it is a civil matter and even in cases of large commercial piracy it is still not seen in the same light as something as despicable as CSAM, some might argue that it could cause significant monetary damage, but even that is nowhere near as awful as the damage CSAM causes and has caused to people. It's honestly so terrible that the fact that you would try to use it as a gotcha to win a this petty piracy debate is honestly disgusting, it shows that you are a disgusting person who doesn't understand how severe of a crime or accusation that is.