Basically, people who funpost on the internet are simply marks waiting to get taken. It's real simple, let me demonstrate
"Hi Anon, you're the person who we know has been posting online about how much they ate Jewish people for days. We also know you're looking up harder actionable content now. Would you look at that, I'm here to egg on or facilitate your crime. I too ate Jewish people, want to buy a fun?"
And that stupid person will take the bait every single time, because they have set themselves up to invite trouble. They didn't know to harden themselves against this kind of gravity and to resist sirens and harpys. Careless speech is even easier. Once you get to the point of being such a suspect that they put you in a web, it's almost over. The more you struggle and act out, the quicker the spider comes over. Only right conduct and a very developed firewall against becoming a mark can save you from this fate.
The first, most important step is not to invite the devil in the first place. It's not to blow off steam saying stupid things in public spaces. This might be patronizing, but honestly it could save your life