IwubCheeze: The 404 error wouldn't be Fairfox blocking her profile would it?
I also get this error trying to look at the OP and Tauto's profile
GOG's implementation of the profile feature was a mess at launch. Many users rightly complained about how much they could not hide. GOG's solution was the 404 page. I can't say whether the block you hit is because Fairfox blocked her profile or because something more unusual happened. I can say that there's a weird inconsistency in her most recent thread. In the summary view, the thread starter is listed as "User deleted". If you open the thread and go to the first post, it's credited to Fairfox and has the same content it had when I read it before the weird deletion event. That is, both the username and the content are unchanged. If the deletion was deliberate, it was weirdly incomplete.
I seem to recall one of the GOG staff hinting that Fairfox had been temporarily banned for some offense that supposedly Fairfox would understand, but from context, I couldn't figure out what it was. The phrasing suggested the ban had already expired before Fairfox opened her most recent thread. As far as I know, getting banned doesn't cause the observed oddities, so I don't think a simple ban, even a new one, is the explanation.