Troy's blog provides good value, the info is easy enough to understand and talks about problems that sometimes slips through the cracks. I would appreciate if he would be more succinct in his articles, but overall he's doing a pretty good job.
I don't know, since my internet is so fast I don't really feel the dip in speed when I use a VPN anymore. I suppose this is relevant for people who download a lot of files or have slower internet.
Seems like it would be a pretty interesting business to get into, my dad is thinking about it, since he works as an operator right now. Seems like water has best margin :D