Just read this metaSO question to find out what is required to launch a site:
Put another way, every proposal that launches must satisfy these three criteria:
A total Commitment Score of 500, 200 committers 100 committers with at least 200 rep on a single site
I question the 3rd of these. This requires a large number of committers who are already active on another StackExchange site. If there's an overlap in "user correlation" with computer programming (subjects likely to be of interest to computer programmers e.g. science fiction or gaming or mathematics), there is a huge bias towards success, as compared to something that is completely different (natural science or religion or something).
I don't think this is fair and I think you should reconsider it (well, definitely reconsider the requirement of 100 experienced committers, I could see requiring 10 or 20). Or at least make it extremely obvious to people who are interested in starting a site that they need to go out and get reputation on existing StackExchange sites, otherwise the "commit" vote they made doesn't make any difference.