But people have a habit to change their decisions. 35 years ago I wanted to be a firefighter. After many years, I have chosen different profession. People opinion change with time, after a decision. Not saying that casinos should immediately welcome their former clients who have chosen self exclusion, but will it be bad if a gambler returns after 10 years? From ToS - yes, as solution would be having another account. From moral point of view - I would give a chance if a person really wants to return.
we don't know if there's a cost to maitain an account (monetary cost or maybe some extra difficult or time needed by the support, I don't know) but in general I'd agree with you
it would be better if the accounts are not deleted or banned after innactive use
it's normal to do something for a while, stop doing it and come back again even if after many years.
Logically, it does cost extra money to keep and maintain account that is not active on the casino, because like I mentioned, if we are to think logically, a server is like a big hall that houses differents rooms, a server as a hall can maybe house 1 million rooms or more depending on how large the server is, and each of this rooms belongs to a registered user, this is where the user's personal details are stored in the form of a database, the user's data, his username, his login details, his wallet addresses, his account logs and transaction history and many more are stored in the users data which also is load stored on the server, this load may contribute significantly or insignificantly in slowing down the server, and each time the server is being maintained, it will cost a bit more to keep accommodating those inactive accounts as this is like packing out of a house will leaving your belongings in the room, someone else can't pack in until you have completely packed your belongings..
So this why there are some casinos where if a user stopped coming online for a very long time, they either delete the account or will start Charging the account for rent, which the user must pay when he or she comes back to claim the account again.