8chan is still quite a niche forum when compared to the sheer size of 4chan. There are a lot of *chan forums out there with varying popularities. A handy resource for comparing these is https://nnmm.nl/chanstat/. A great example is comparing the most popular board of both forums /g/ (/tech/), /pol/, /v/ and /b/. I'm quite familiar with the drama that was happening half a year ago during GG and the /pol/ purge. Blaming such events on SJWs instead of the internal conflicts that have been going on on boards/across boards for ages is narrow minded.