Oshosondy, do you mean that if binance finally discovers that the person has multiple accounts through this means, they will instead choose the part of punishment instead of merging the accounts?
Very possible but I am not sure. I just know that anyone that wants to delete account has no money there anymore. No good reason to merge it.
Meanwhile, why do exchanges have rules against multi-accounting as if they are casinos?
Do people also cheat exchanges, if yes, in what ways?
Exchanges give the privilege to go for subaccounts instead. Most exchanges will even give you new addresses for each subaccounts.
On MEXC, you can go for opening another account with email if you want. I have four accounts on MEXC.