Well, not sure I am a bad actor but reading the comment gave me the idea of typing my ex's nickname and I now discover she has an account on a quite unusual platform of which I am a member, too.
For sure, I would never have the time to build such a tool. So, yes, some bad actors may have the "ability" as you mention, but I don't think that is the best justification to make querying this tool that easy.
