Recently saw how some users (I do not know exactly who) use Codeforces accounts embedded in the Internet for bots and try to slow down the testing system (I did not participate in this and could not prevent). We have previously encountered that Codeforces warns users about the loss of their password, or an unreliable password, so why not do this: if the account is in the merged database, a notification is sent to the mail and the password is regenerated by the system. This method will reduce the abuse of the merged account on our favorite platform.