Developers Sean (Sproctor) and Will (Kassah) tend to stay in #warlock on irc.freenode.net most of the time. It's our official IRC channel. Sometimes we're slow to respond, if no one answers within a couple of hours, feel free to come back in a day or two, if we catch the question after you leave, we will generally try to post the answer to the topic.
Sean's github repository is currently the most active.