DerScheisser is a great meme sub if you just want to dunk on Wehraboos and Neonazis, but is still predominantly shitlib. It literally bans anyone who says anything positive about the USSR beyond "they killed Nazis". Really goes to show you that Liberals would go through the Weimar motions that put the Nazis in power in the first place again in a heartbeat so long as they stop the commies in the process.
EDIT: Late link.
Wasn't their "revolution" literally just having power handed to them so they could be the fall guys?
The leadership's of the SPD were essentially just handed power by the militsry government as a way to shift blame and as a way to satisfy the revolutionarieis, and had opposed revolution from the start.
Many of the people who carried out the revolution were members or supporters of the SPD or USPD (The KPD only became a thing in 1919), and their actions were revolutionary
The leaders of non social democratic parties were very much not in charge in 1918 and they were very upset about it, but being libs they awaited the upcoming 1919 election as the social democrats kept doing shit without asking anyone fuming.