Probably a good bet- For those who work wood as a living, after a long day of production in the shop, spending time blogging is probably not at the top of their priorities. [I'm a hobbyist].
A lot use this (LJ members) to spruik their business…. they have a captivated audience.Woodworking has always been a hobby with me. I suspect few professionals spend much time on Lumberjocks, obsessing over what brand of machines to buy, or how to do trivial woodworking tasks.