> If you go that route, at least change the password to some random string to lock yourself out.
I do that once in a while when I find myself wasting too much time participating here. It increases the friction quite a bit, but eventually I cave and recover the password.
If you really want to be serious about it, have to change the email address first, then toss the keys to that.
No, you can (ok, I admit: try) to leave any time.
/etc/hosts 127.0.0.1 news.ycombinator.com