just a question "Why?"..
never fell embarrassed of making mistakes in learning process.. my first source code was full of garbage, if I made mistake I don't delete them just comment them out and put a notice "this is mistakes.." and after the source finished I retype the right source in the new document, side by side with the old and possibly optimize it ... that way I can learn from my mistakes... and try to stay away from it..
Hutch, if I remember correctly in the old forum you have a notice about not deleting post, right? what about making it as a rule or a notice..?