I've been using the Ask Ubuntu stackexchange since it came out (Top .3% of users there) and have spent countless hours reviewing. In my experience the deletion

I've been using the Ask Ubuntu stackexchange since it came out (Top .3% of users there) and have spent countless hours reviewing. In my experience the deletion is one of the best features. The mail is making an assumption that every thing that is being deleted is valuable, and the fact is that there's a ton of noise, and there's a lot of time being saved _for everyone else_ by deleting crap. - Most comments don't add anything useful, if a comment is actually useful then it's better to edit and add it to the answer or question, or to remind the poster to do so. - By the time SE is automatically deleting something it's clearly been abandoned by the community long before. - I don't need 50 answers explaining what `/etc/hostname` is for or 15 comments with your opinion on systemd.