RE: https://infosec.exchange/@ubernostrum/116184516972371923

I’m still looking for resources here if you know of any (tl;dr a company threatening debt collection over an account they admit is not mine).

I suspect a single piece of correspondence on law-firm letterhead resolves this, but for every firm I've talked to the dollar amount at issue is too low to even justify talking to one of their attorneys.

They admit the account is not yours.
Does your state have laws about bill collector harassment? That does not cost anything to pursue, and there may be provision for you to get something out of it.

Bill collectors hope to intimidate you into throwing money at them.

If they were dumb enough to take you to court, they would lose. They would end up paying your lawyers and maybe a penalty.