Hello,
I'd like to start this post off by saying that I made a mistake. I am a frequent user of Ideone and I accidentally created a public paste during a contest, allowing dobby28 to copy my code. This was my mistake and I won't let it happen again.
Furthermore, I respect anyone who puts an honest foot forward to improve, whether they're gray or red. However, dobby28 has been consistently (if you look at his submissions) copying code from others and submitting it. Why is he (and others like him) unbanned? It's clear he's not trying in competitions, but rather just cheating to achieve a higher rating.