Debatable. Right now the only significant revenue stream is advertising on the site. However advertising took a huge nose-dive last year (or is it closer to 2 years?) and that IMHO was a huge wake-up call.
Having a solid subscriber base would help offset the risk of being soley dependent on the ebb and flow of advertising.
I'm not mad at their strategy. It seemed to have worked for Experts Exchange who I would guess has a more tech savvy user base. Just pointing out that you can't hide your content from users while getting it indexed by google at the same time.
Having a solid subscriber base would help offset the risk of being soley dependent on the ebb and flow of advertising.