Recently I've been suspended from an "online bank". It's a traumatic experience, especially if you need the money held in that account.
Fortunately the amount I had there was not that big but the abusive procedure is trumatic. I can't imagine how someone would feel like to have all his rent money blocked in an online bank.
Basically you are told that unless you provide whatever documentation they want you loose the access to your own funds. Of course providing them documentation is no guarantee they will lift the restrictions. The support is via email only. The boarding and verification process it's really just a bite and switch scheme. I don't know how someone would feel safe to keep money in such a bank after they put your account/transactions on hold for days.
I start to like the "crypto currency" concept of owning your money more and more.