While I am not a fan of being "babysat" I do think that this game in particular should be moderated and watched over. Especially when there are kids and young teens coming in the game. Not a lot of kids know better either (I know not every kid is bad, but there are a few bad apples. Even adults can be bad as well).
I am not a computer geek of any kind so I'm not sure how a system works when it comes to banning, moderation, etc. but I know that what was posted by you, Raz, just sounds like a bad idea and I agree with a lot of what is being said by other members of this community.
Also, not having any sort of communication with the staff is also pretty bad, to be honest. Part of why certain things and goals (even relationships, any relationship) fail is because of lack of communication. There needs to be a share of opinions, thoughts, and ideas tossed around first before anything is made as a decision. Especially if it's permanent.
On another note, banning anyone who gets blocked? That sounds horrible. There could just be some minor disagreements or maybe someone has had a bad interaction/first meeting with someone but all they need to do is block them. Maybe they want to unblock them and talk again. Just because they get blocked doesn't mean they should be banned.
Please listen to what others have to say and think about what you are doing before doing anything.