It seems that no one will want to buy a verified account because it carries a lot of risks. Some of the risks include:

1. Buy hacked accounts. It is not impossible, if someone has paid some money to you, then you take the account back.

2. If you have financial problems with the account purchased, Bitmex can ask for proof of delivery of an identity photo and selfie while holding an identity card. If we are unable to provide proof of document ownership, the purchased account can be blocked.