He did much more than that, trust me. He just flooded every kind of service cell9 used (Github, his bug tracker, his Twitter account) asking for him to open-source the code. While it's outside our power to stop him from harassing cell9 on those sites, you'll be glad to know that we don't allow members with such antisocial behaviour to stay in this community.
If cell9 wants to go back to work on NTR's, that's up to him. We've done our part.
BTW, I'd like to remember that discussing of a certain individual being banned or not is actually off-topic and I'll start removing posts pertaining to that after this point.