I tried to have my account deleted more than 10 years ago. It's like a roach motel here, or the Hotel California. You can check in but you can't check out.
What you CAN do:
1. Just forget you ever signed up and stop coming here. Disable all of your notifications.
2. Be a huge j@ck@$$ and get yourself banned. Then see
#1 .
3. Just do like I did. Drop by on occasion and have some fun. Take a break for a while when you get fed up.
This place can be really fun if you know what you are doing. That is all I can say.
Peace.