Bah, in the end nothing is really happening. From 4K some time ago, they are now maybe 3K active users (before the drama), less than 2K during night since the forum is very US centric.
Neogaf exploded in less than two weeks, but the situation back then was different. GAF drama was in the middle of the Meetoo, when people underestimate the dangers of liberal thinking. GAF basically imploded from the inside, you could already saw it reading the threads, it was all Gamergate and controversial and politics. Mods gone in a hurry, without any external attack, and at least, Evilor accepted some responsibility. But most of all, many many people wanted GAF to ruin, banned ex members, disgruntled ex mods, some part of the press and even developers.
After 4 years, Resetera sees another destiny. Meetoo transformed in a annoying ice-bucked-challenge; Liberals are mocked inside and outside US. All the problematic mods are gone to be replaced by people even more problematic who think they have no responsibility and all the bad things occurs is because "bad guys", Trump, "nazi", "alt-right", so it is never their fault. Press still support Resetera for no reason except using it as echo chambers for clicks.
Except for some guy that showed they've had enough, most of the people don't really care about all the drama. Most of them are lurkers or use Era as a news aggregator. What remains is the small but loudly group too weak and stupid to create anything, let alone a new forum, so the chance to left Resetera are low.