Don't post much because, to be honest, it seems pretty addictive. And also because I maintain my own site on the web where I post many of my own musical compositions. This requires a surprising amount of time to maintain.Plus I also have a big input into building up the tablature archive (now over 1,000 tunes tabbed out) on a well-knwon mandolin website.
(PS Note I haven't shamelessly given a link for either!)