@Yawa2020, do you know that once in the past it was quite normal to sell/buy BTT accounts? I think that sometime during 2015, a change was introduced where such practice became undesirable, but not prohibited. Then some members started tagging all the accounts that would be involved in such activities in any way, even if it was only about the intention to buy/sell, without it actually happening.
I think that the current way of dealing with this problem is not ideal, but since there is a merit system, it is much more difficult, so to speak, to produce high-quality BTT accounts that would then be offered for sale. No matter how the rules are set, there will always be people who will find a way to do what they want, but there will always be those who will detect their bad intentions.
- Accounts from hero to legendary rank should not be allowed to change email in order not to be able to sell such accounts.
That rule would not make sense, because what if a user who is a Hero/Legendary comes to a situation where the provider through which he has e-mail no longer exists? Therefore, the option to change the e-mail must always be available, regardless of possible manipulation. In addition, some sellers of BTT accounts even offer the option for the buyer to receive an original e-mail with a password and private key of the signed address - and the only way to notice that the owner has changed is in the writing style.