i think user should have right to remove his/her thread like a authority to edit own thread between 24 hours.
this kind of right is good for all, for example i make any thread and accidently that post twice, or after posting my thread we found that our thread is repost, thn why be wait for TM or Mods to remove that for us. why not we do this ....
baki bhavna ko smjho wording par mat jao...