I wasn't intending to explain much further but there's a bunch of stupid rumors going around so I may as well clarify things.
RTB's always been about furthering my own skills and knowledge and featured prominently on my resume when I applied for my first job (and it's probably why I got it). It got to the point a while ago that RTB no longer did that for me but I continued because I enjoyed the game/community and it provided a lot of useful services that were clearly needed - plus I saw an opportunity to have my work exposed to a much larger userbase via Steam.
However in my opinion the Steam launch was underwhelming, badly co-ordinated and still has a number of non-trivial problems that haven't been resolved a month and a half or so later. Honestly I expected game development to be taken a bit more seriously given the potential for a much wider audience but it's just not materialised and I got bored of putting more effort into the game than the guys who make it. I offered to develop community features and services for free as an official part of Blockland but there wasn't much interest or follow-up on that.
So with my free time running out due to a recent job promotion I'm having to pick what I want to spend it on more carefully and I really can't justify spending any more of it on modding Blockland. I'll continue to play and moderate because it's a great game but I'm done developing.