And it's not just the spammers. Any topic that touches domestic or international politics in any way almost instantly brings out a lot of bad-faith actors, here or anywhere else on the internet.

> Even the heuristic of "only trust accounts older than n years" isn't perfect, as eventually a few people will undoubtedly sell their old accounts on a dark web market for a little extra cash...

Yikes, I hadn't thought of that angle. That would explain some of the long-dormant accounts on Some Other Place that suddenly start spewing out-of-character garbage, assuming they weren't password-guessed, data-breached, or keylogged by some rando.