I'm in sympathy with SunrayFC. It would be nice to be able to flag a particular thread with an "ignore" tag so it doesn't appear on one's screen. I don't know how many times I've opened a thread because its title sounded interesting, only to find that I had no interest in it, and then opened it again the next day because I had forgotten that I had looked at it the day before. If I could have flagged it the first time, I wouldn't have wasted my time opening it again.

The "filter out" function is fine for some things, but it's limited. For one thing, it only allows one to filter out thread titles containing a single string of characters, not multiple strings. If I don't want to see threads whose titles contain "BNP" or "caption", I can't filter out both strings. I have to pick one or the other.