I'll sometimes search for an acc I want to follow and they have 5 different accounts with different fedi addresses. I know I want the Mastodon account but often there's no indication which one is Mastodon, which one is Pixelfed which one lemmy etc in the name.

So you end up with account@mastodon account@pixelfed account@lemmy.ml in the best case.

And account@instancename1 account@instancename2 account@instancename3 in the worst case.

And they all have the same icon and belong to the same person