As a explaination, my fellow Swedish friend, the what_are_you account is a toxic user who is impersonating the famous user who_am_i, saying to be his alt account. However who_am_i isnt the only one as a victim.
Fellow user Iceu. has also become victim for someone impersonating and giving out to be his alt.
Both of the impersonating account of are two of more since not that long ago, there was both a "thebeatles" impersonating account aswell as a "OliviaRodrigoreal" one.
The accounts were impersonating the people/victim by comments mostly, but both proven to be fake.