The deletion (or hiding for that matter) of threads has never been doable for the user. Editing, however, is a "new" (as in, didn't exist when the forum started) feature. But you can only edit your post within the first 24 hours. After that, it's going to stay here until the forum gets deleted/corrupted/lost/goes offline/etc. So, if you don't want your comments to be viewable for all time, be sure you post your message the way you want it posted (or not all?) the first time. Mouser X over and out.