I even had one member post that I was the most unhelpful member on the forum because I didn't pander to his every question via PM. :lol:
LOL. what a ******... you're one of the most helpful people on the forum :shake:
I get a lot of PMs too on this and other Forums. I guess it can be seen as flattering that people will ask, and I always go out of my way to help people, but will certainly draw a line with the odd rude one (same one as Clive perhaps

).
In your case Donald, you have developed a new and successful way of doing something and that has been a huge time and money investment, and is essentially something that someone can take and make money from. It's a bit different to someone asking what your alignment settings are or what size fuses you use.
I think any of us who have 'Project' threads have a degree of obligation to answer PM's about what we're doing / showing to a point, but I agree totally with you asking for compensation if they want technical information that has your blood sweat and tears on it mate :smthumbup