When you join a platform, you must accept its rules, terms of service.

Account exchange (buying / selling) is allowed but discouraged. Do you know why it is discouraged?

- Unfair. Account exchange should happen with higher ranked accounts like Hero member or Legendary member. Even before the kick off of merit system, it needs months to reach to these ranks. After the kickoff of merit system, it is more challenging to collect enough merit to rank up to these ranks.
- Possibly scam. Posting on behalf of higher ranked accounts make your posts and especially thread announcements look more trusted. That can be abused by scammers who want to get a Hero or Legendary account for thread announcement for easily scam efforts.
Most of exchanged accounts are from past hacks years ago and most of them used for scam or bounty spam on the forum. Discouraged!