Disable edit for X minutes if censored word is used

[rootnik]

I'm having trouble with spammers from another website.

All of my censored words are a combination of words and phrases (installed the censored phrase hack) from these spammers. When they get censored, they edit the post until they find a way to break through the censor (by adding blank spaces)

What I am wanting to do is not allow the user to edit their posts for X amount of minutes if they use a word or phrase that is in the censor list. If this involves moving them to another usergroup, so be it (actually moving to a different usergroup may be even better. Shortly after finding out they can't edit their posts they will just start posting new threads).

Any ideas?

[Hornstar]

if they are spamming ban them