Yes, rubah, I was going to say that it does all depends on the page as mine is set to 100 threads.

Also, as rubah says, if it gets closed after you post in it, then it's too old. Help threads I really wouldn't close regardless of the age, but the rest are on a case by case basis for me. However, something going on a few months is pushing it and something that has a lot of spam will definitely get closed. A lot of older threads (even a few months) have posts made by members who have already left EoFF so it really doesn't make much sense to get those revived.