[sdrothrock]

I think that what people are trying to say is that if you do something for free, you don't really think about the time going into the answer or what kind of "service" you're providing the original commenter.

But once you incentivize it with money, you start thinking:

1. Hmm, how much am I making per hour here? How does that compare to my normal job?

2. Man, X dollars is kind of low. Do I really want to go find links and write a lot of stuff for just X?

3. I wrote a lot for Y dollars before, but this guy has a more difficult question for only X... guess I'll skip it.

4. This guy's question is something I can answer as a person who does Job Y, but if I'm doing Job Y for him, I want way more than X dollars!