You can have short replies in all caps now, such as TOUCHDOWN!!!!! in a Colts game thread. Please don't abuse it, as yelling all the time (or even a lot) is quite annoying. Given the users on PD, I don't expect this to be a problem. Before now, unless you had lower-case letters/words in the post to go with it, if you tried to say only TOUCHDOWN, the forum would post it as Touchdown.
You can now edit thread titles. I found the option page in the adminCP that sets this, and it turns out the reason why only admins could edit thread titles was due to the fact that the setting was set to 0 minutes for regular users. I have it now set to 86400 minutes (which is 60 days). So you can now edit your posts' title without our help.
You can now also add a poll to a thread you already made within 60 days.
Why 60 days? I wanted to make sure that for general use it's as good as unlimited, but I didn't feel like making it any bigger.