Cayennemist, you and I see things slightly different...
The paid version gets most of us away from the 300 posts of "OMGONZORS my PLANT IS YELLOW" that come through the regular growing section. While its important to answer those questions for the neophytes, its nice to have a place where those who've been around a while can kick back together.
Don't think of it as "hidden knowledge", because - frankly - the private forums generally are slower, and we will all most likely be in all of the original growing forums as well.
As far as I can tell, the essence of the site, and what makes it great is remaining the same, with the additional option of a place for the seasoned pepper gardeners to hang out apart from those still wet behind the ears.
All of the threads that are/have been in the growing section are still there.
There is still a treasure trove of knowledge.
Anyone with "extreme" by there name won't stop being helpful simply because they paid 17$/year for membership.
There is still the free ad's section, and so forth. Still all the social forums, the cooking forums, the chili-business related forums...
You are kind of turning your back on a community over something kind of sill - no offense =(. It comes across as more of a pout, than anything.
I wish you luck whether you stay or go, and I hope your garden is successful.