Seems like every one of you in this thread is out to get me and make my time on this site, very miserable. It's like freaking grade school all over again. 
Ace - this is the only forum I can think of off the top of my head where regular users had the ability to delete entire threads (including their own).
This decision has nothing to do with *you*, personally, but your actions have shown us why allowing this is a bad idea (heck, in some of our cases, we didn't even realize it was set up that way in the first place), so the decision was made to disable that ability. I cannot help you decide to not take the decision personally, all I can say is that the decision was not personal and hope you believe me.
With that said, the "announcement" of this decision could had been handled in such a way that it wasn't seem as taunting you - and for that, I apologize.
I hope you can understand why this decision was made and, even if you don't agree with it, at least understand that it wasn't anything against you, personally. If you disagree with it strongly enough, I would suggest getting in contact with Snowcone and making your case - however, be aware, I'm pretty sure most of us on the site are in agreement that general users should not have the ability to delete entire threads.