I've heard these allegations before and I've wondered about it myself. When I still used to watch Fox News, WW ran ads on every single commercial break. I wondered if they were getting free advertising and if not how much were they wasting of donors money to run those ads? I checked them out on Charity Navigator and they got a fairly high rating. With that in mind I've continued making contributions.
I checked them out, and noticed the rating as well. But I am very bothered by the enormous salaries the top people are pulling in. Unfortunately, that's not unusual in the charity world. But it's pretty much of a deal-breaker for me.