I saw someone ask this once before, but there was no answer. Hopefully someone can help come up with a way to get around the problem.

I added POS to my bad language list on my forum. While there are legitimate uses of this acronym, the context it was being used in by my posters was an abbreviation for another word I had banned.

The problem I encountered is that this banned any use of POS. Words like "possible," "positive" and even "post" were flagged as inappropriate. I had to remove POS from the list because I was getting too many complaints.

Having looked through this forum, it looks like the bad language filter does a regex search on the entire post, so it finds even partial matches like the ones I have above.

How can I just ban "POS" without the variations? And if I can't, how can I search for just "POS" as a single word from the search bar?