Comment by Groxx

Giant online communities, yes. Small ones seem totally unaffected afaict - some harder to spot scam/spam accounts, but they're outed as soon as they act. And any invitation-based thing should almost perfectly block those.

Smaller communities are generally a lot healthier anyway, so tbh I don't think this is all that bad of a thing. I don't think it's possible to be open to millions and also be healthy, unless you spend a lot of money paying moderators (and regularly rotating them, to prevent burn-out or mental harm from too much exposure, which ~0 do in an even slightly ethical way).