So, a couple weeks ago I got a letter in the mail for my estranged father - he's never lived at this address, nor has he lived in the same state for around a decade, and I haven't heard anything significant from him in about two years. Apparently he owed a hefty sum of money to a bank (we think it's credit card debt - almost five figures), which has since passed the debt along to a collector - they sent a letter to him trying to settle for a portion of the sum, and that letter ended up in my hands instead. I asked my family out here what they thought, and we agreed that he's probably avoiding his debtors intentionally (he has a habit of running away from problems, hence why he's living it up in a podunk town in the midwest with his mother). At the time, I was very tempted to set up a VoIP number, contact the debt collector, and pass along his contact info and address since I have both and know he hasn't moved anywhere else.

Part of it is because I want to get some petty revenge on my father. He wasn't abusive or anything like that, just a very neglectful father and more than happy to abandon his kid in favor of his own comfort, and he saddled my mother with the costs of raising me because he couldn't keep a job - only fair that he pays his dues somehow. The other part is, I don't want these debt collectors harassing me or the rest of my family because of my father's negligence, since they're clearly desperate enough to start looking for relatives' addresses to send collection letters to. I feel like acting on it is totally justifiable and in my best interest - would I be the asshole for doing this to him?