@Oleksandra *********
I don't think that banks will suddenly reopen accounts for tourists or others in 6 months time. You've got that completely wrong. Once a certain large scale crackdown is underway and policies change it stays that way permanently.
It's like the volunteer visas that agents used to be able to obtain. Nowadays, they're gone. No agent can assist in getting one anymore. You can apply for a volunteer visa but it must be done properly through a legitimate sponsor and through a Thai embassy or consulate abroad.
20-25 years ago, they were stamping passports out of Thailand and back in, without the holder being present. That practice occurred as late as 2008 but sometime after that it ended, permanently. You now have to go in person.
Sure, corruption is still a big thing in Thailand and there's still a lot of shady business going on but they're changing, so don't expect the bank account situation to return to normal because it won't.