Basically, it's small(ish) forums that have survived over the years without migrating to Reddit or such, and even those are not immune (and could go away withou

Basically, it's small(ish) forums that have survived over the years without migrating to Reddit or such, and even those are not immune (and could go away without warning). User upvote/downvote systems can be helpful, provided there are checks and balances against being gamed.