There are a few hide links plugins already available.
This isn't hiding links...
My bad. I see "hide" and I just think links.
So OP. Do you want a new mycode or just to alter the existing [code] tags?
I hope mybb does more control methods with 2.0 for the mycodes.
Yes, and I forgot about the reply issue as well. So anyone who can reply to a post that the info is blocked out on can see it that way. I'll make an updated version when I have a few moments to spare that fixes this. I hope. Ugh.