Censored words are not being applied in signatures. I have the F word censored, did a test placing it in my signature and it does show. The censor should apply to signatures as well.

However you're an administrator and not everything applies to an Admin. Is this possibly the reason? Can you test with a normal account?

Tested with a normal account with the same results.

damn tested at my main board not my test board and it is working there now.

You'll want to make sure that you're not making the changes in the control panel to user profiles; as i believe it will subvert the censor (as you're an admin, and have rights to update anything)