I have given about 20 answers freely. I have not solicited any business -though my signature did show my web address.
If you consider that advertising, do as you see fit.
The losers will be those I could have helped.
There are always a few small minded people who think everyone is out to make a buck -maybe they think ill of everyone. Do as you like. I know my motives were fine but if you feel otherwise OK.
You could've just gone onto the computer section in technology Dave, and answered any questions you thought fit. The fact you've put an address up, IS advertising, even if you didn't mean it like that.