Problem with the word "get"

On the forums I'm running (http://www.3do.com/community/), I just upgraded to 2.3.0 from 2.2.8 and re-installed the following hacks:

1. Title Class Hack
2. Moderator Drop Down (Revised) v2

I also just added these two to the forums - they were not installed prior to 2.3.0:

3. Show Post when moderate Attachment
4. Attach Waiting for Moderation Advice

The site now hangs when creating or editing a post over 500 caracter and the word "get". Removing the word (or replacing with "g e t" "g.e.t" or some variation) allows a post to go through normally. Shorter posts do not seem to be affected. I'm still trying to track down the exact character threshold for triggering this behavior.

I think it's the first hack since number 2 is really just a template mod, and 3 and 4 were added after the problem first started occuring.

Any help tracking down the exact cause of (and a fix for) this problem would be greatly appreciated.