I have no respect for QS. They look at people as chits to cashed in. People are their currency. If you can't monetize someone right now, then the source is ipso facto useless. Mind you, Insurance.com sent out its share of emails (er, spam), but at the same time we had some pretty good voices of the consumer at the table as well -- myself included. QS had none of that.
Beyond the consumer angle, they are a meat grinder for the employees. I met very few folks in my year there that had more than a year or two of tenure. There are a couple people I worked with that were there for years that were waiting to cash out and leave (some have left since then), but they were few and far between.
If anyone wants to know anything, feel free to ask.
Your incentive is you want to be good for the environment.
In the end, regardless of what the motivation is, the results are very similar.
"Virtual" means never knowing where your next byte is coming from.