I can't explain how other forums work around this issue. Perhaps more recent versions of vBulletin have this capability. vBulletin add-ons might make it possible. Does your own forum use vBulletin?
I'm not angry, Petek, just trying to understand this. The forum I'm referring to that used the skull smiley is one I belonged to many years ago. I haven't been part of that forum since 2006, so they were definitely not using a more advanced version of vBulletin than CFC's current version (at least I hope we're using something more current than 2006!).
I have several forums, all with various versions of Invision Power Board software. The one I tested yesterday is a ZetaBoards forum, which is one of the free types of Invision forum. I just tested another IPB forum and got the correct result there, as well.
My forums aren't using any add-ons or modifications; this is how the word filters normally work on all IPB forums.
But I do think that it couldn't hurt to consult the vBulletin support forum to see if anyone has found a way to work around this issue. Maybe that's what happened at that gaming forum from years ago.
The reason I got seriously concerned with things like word filters there was because I ran a weekly writing competition in the Arts & Literature forum and one of the contestants used the word "crap" in his story. I didn't know that word had been entered into the autocensor, and when it was posted, it was rendered as a large, spinning green skull. After contacting the author and finding out what word he'd intended to use - and realizing it was actually pretty mild - I asked the admins to remove it from the autocensor list. They thought it over and agreed.
So even though the word was four letters long, there was only one image that came up. The text used was 8 characters long, with 7 of those characters being different.
This is turning into a mystery...
