I can't speak for all sponsors but i have to say for the company i work for we keep a close eye on those stats and they need to be accurate. It helps us to see if there are any weaknesses in the chain from our promo content, to the tour to the join page. Those numbers also help affiliates to modify and fine tune the way they send their traffic to our sites and they need the same accuracy in order to make more money.
we don't lose any of the 'hits' we track and i suspect most other sponsors don't either.
spaz
__________________
|