And to clarify, by "sites getting attacked" in the OP I mean information/culture attacks, where people create many false accounts and try to overtake the culture of the website by upvoting themselves and posting a LOT with their preferred narratives, with the goal of overwhelming the site's culture. We had such an attack last for 3 days, involving dozens of created accounts, but sites like voat are enduring attacks like this lasting weeks, with no breaks. Website culture hijacking, basically.

This is the type of attack that seems to be going crazy the last couple weeks all over the internet, and is certainly why zerohedge had to shut down their comments too. It's not a new method of attack, but it seems almost every controversial site on the net had to turn off comments, or disable account registration, to combat these culture attacks in the last couple weeks.