Hey guys, I'm not sure this is even like, a real big issue but here goes.
I was browsing the MMO subforum when I noticed something odd in the bottom of the forum, in the "Who's Online" section. Namely, I appeared twice, for some reason.
Both "versions" of me take me to my actual real profile. This obviously doesn't impact anything at all that I can tell, but it was an interesting bug.
I'm on Firefox 88.0.1, on a Windows Machine with uBlock Origin as the only addon I have running.