It's worse than that. It's people generating a moral panic so they can retroactively declare something to be crimethink and then use that as a weapon against anyone who disagrees with them by trawling through their history. In which case it's not a matter of standing by it because mobs aren't interested in context or nuance.

Society's defense against this should be that we don't use mobs to punish people for saying things we disagree with and anybody who attempts to do that gets laughed off the stage. Because as soon as that's not what happens, the public discourse gets marred by self-censorship until enough time passes with it not happening that people stop expecting it to and thereby stop worrying that they can't know what's going to be declared an offense tomorrow.

But now that it has happened recently, the only way to get it back in the short term is to have people posting under pseudonyms.