Just curious. Something isn’t quite right with this post. Was it an “alt”, or was it not ? If it was, reasons and how it may have been found have been described by Ondrejj (even with different IPs, it can be detected with fingerprinting. There is a topic about it). In this case, problem solved.
But if it really wasn’t, has it indeed been “removed” or “banned” by “the system” ? (it shouldn’t !) Or was it maybe done manually by an admin/moderator ? Or was there maybe an automatic removal of inactive accounts after a period of time ? (nothing to do with “alts”)