Different things to different people at different times.
I don't know.
Probably not (at least as far as I know); Pincus is a relatively common name, typically from the Ukranian meaning "swarthy". I am, however, related to three fairly-well-known Greg or Gregory Pincii: my great uncle. my brother, and an evil office manager.
My fingers speak vi - lately I've been using vim.
All of the above, as well as awk, sed, csh, ksh, and the ECMAScript family (JavaScript, ActionScript, JScript, etc.). One of these days, I'll find an excuse to learn Ruby.
Some pages have specific contact addresses. As a backup, hi-there@achangeiscoming.net should generally work, although I make no promises about how often I check it or if and when I respond.
Sorry; there could be any of a host of reasons. I do my best, but make no promises.
Dreamhost, who also hosts some of my fovorite non-profits - but there are lots of other great hosting companies out there as well.
Follow some of the many links, surf at random, go to a library ... and/or sign up for the (sporadic) mailing list.