No. Maybe I worded that poorly that it sounds like one. But in the past, there have been cases that people dig enough to get that information from devs forum/email/PM. I am just pointing that out. GRPG Discussion is not exactly private either. People could probably get to this thread just by browsing around. And it is most likely not a secret either that Cleve is a Codexer.
Then again they didn't gag him after his anti Mogoloid rant so I seriously doubt they will take any action against him for this.
STEAM is pretty libertarian on political content on their platform. There are harder lines for clearly low effort political bait or underage porn but its mostly free. Now each Devs' moderator can moderate their own piece of land but STEAM itself usually tries to remove itself from retarded west politicking as much as sensible.
Now Review fixing, on the other hand, is affecting their core business. They have been trying to combat it for a while, even Review Bombing, so this case is treading dangerous water.
But maybe Grimoire is minor enough not to get any attention.