I’m fandom old enough to think it’s weird when people make new pseuds for every fandom they write in, but it’s a common enough practice these days. Is it possible it’s you’ve definitely read who’s just got a new username?

That would make sense! And if they chose to do that it isn’t my business what their other username(s) would be. So I suppose I simply Do Not See (but it is still weirding me out)