There is a specific rule stating no mention of warez or illegal software.
Just the mention of using a torrent site to illegally obtain a TV show in another thread caused the thread to be locked.
A key generator is a clear violation of this rule. By pointing it out, the OP can now edit his post to make it within the rules before a mod comes and closes it right away. No leeway.
So it is helping. Either he can modify the description and potentially sell it, or not modify it and have no chance of selling it on this forum.