The chat, e.g. global and help chat, repeat the same section of chat over and over. When you come back you have hundreds of lines of repeated sections. This is wonderful and everyone loves it so much and I know it's so hard to fix this so don't. Let us love it cause it's awesome. Btw. this is also a problem in COW et. al. so it's probably just part of the code you inherited but this really would be a nice and seemingly simple fix.
-danny