I can't speak for climbto350.com in particular, but not every good job is word of mouth.
I spent several years while flying charter trying to find a good corporate job via networking and word of mouth with very little luck, but then one day responded to an ad in the newspaper for a Citation job. I've been there now nearly 10 years and couldn't be more content. It turned out that it was a sleeper of a flight department that had been around for ages, but it was at an out of the way airport without much of a pro-pilot population. Nobody knew they existed so they never got resumes and had to place an ad. They'd had an airplane for over 45 years and I was only the 4th pilot they'd ever had to hire. You do the math.
There's sure to be a lot of cheesy jobs in there too, but you might be able to find a diamond in the rough.