I'm wondering if anyone has a guess on how long TNT keeps logs of IP activity, or accounts linked to IPs, before they're erased, if ever?

Especially IPs that have had accounts frozen; are those permanently kept on log, or dumped over time?

(I've had my old main frozen on my original IP a while ago, and been on proxy since. I'd like to re-use my original for legit things, for ease of convenience however)