Still, imho, disabling a board entirely is a no-no.
And removing a copyright is a no-no in my book. FWIW, the entire board wasn't disabled, just index.php...the main page.
In my book also, but that wasn't what caused this error; since the copyright was left intact (and dont try to write it like i wanted to remove it and i deserved the board to go offline, cuz thats one of the ways your message can be read).
Still, hindering a whole application based on the supposed crack on a single mod, isn't a good way to handle it.
Would you like if a cracked application that you have formatted your disk ? ...
Its a purposely extreme situation, to make you better understand my point, which i think you did not debate.
Still, i'm not here to argue about this, i just stated my opinion, and, FWIW, IF i wanted to remove the copyright, i could have done it simply editing the php itself and bypassing the checks.