There's nothing wrong with doing it with an alt account - it's the best way to prevent conflicts.

I also agree with some of the users here - the evidence is too weak and may differ if these two accounts have transactions between wallets and are connected in other ways such as use of the same social media and such.

I also came across a similar case - but I'm not going to bother about both accounts as they are users with different local activity. Both users are hero rank - but I'm not sure they actually have any connection with each other. Of course there's weirdness - but somehow I'm not sure about what's going on there.