It's a very recent development. It's a very modest role, just keeping tabs on the forums and helping out where I can. No pushing, no sales BS. My activity won't even be weighted towards Dr Rahal threads.
I used to post mainly at hairlosshelp going back to 2005, but that place seems to have become less active of late.
I haven't yet gone through with a transplant, but I spent years researching and picked up a thing or two, so I feel I have words of advice to offer if not yet the experience of surgery itself. I nearly pulled the trigger and went for it two years ago, going as far as to save up the money and meet Dr Rahal at Heathrow airport for a consultation of sorts, but I decided to wait a while longer. Luckily my hair isn't too bad. The main thing (and I'm sure you can relate) is to have a solid and definite hairline. It doesn't matter if it's 'mature' (In fact a bit of recession is best, in my opinion) or even noticeably thinner than full density, as long as it's shaped well and has no gaps. I'm 29 now and I see plenty of mature hairlines in my age group which reinforce my opinion that it isn't necessary to 'go low'.
With realistic expectations I think there's a very good chance that you'll be happy with your results.