To be honest with you a lot of people come off as really naive on this thread. I say that because if you think a tool built by one person has a high chance of being supported well and to a greater degree even being around very long you probably haven’t been around very long. I have been scared in a sense to throw money or time into ST because of the high probability it would go dark, or move along in a pattern I don’t care to spend time on following. Anyone ever use TextMate on OSX, granted it’s open sourced now. With all that said ST is great from a usability stand point minus any bugs you may hit, but I have not spent the time building my workflow into it out of fear that it would start to taper off on the dev and support side.
If you want something that stands the test of time use emacs, vim, or put some elbow grease into Lime and make a modern day vim come to life.