On second thought, I don't think you should replace the recipes on the front of the site. Rather, perhaps maybe you could just add a disclaimer to each recipe page that says something to the effect of, "This recipe is somewhat outdated. We've left it here, though, because we feel that this recipe is much more helpful for beginning pizzamakers than the countless recipes on the pizzamaking.com message boards
, which are appropriate for more-experienced pizzamakers..." There could be a link to the main page of the message boards, followed by a list of links to particularly helpful threads for the same pizza style as each respective recipe page.
That way it wouldn't scare off inexperienced pizzamakers, plus it would let them know that there is a next step once they gain a bit of experience. Also, for new visitors who are already somewhat experienced but who don't already know about the boards, it would lead them to the next natural progression of their journey into the world of pizzamaking; it would lead them specifically to what they came here hoping to find.
I offer these thoughts based on my own experiences of about ten years ago, when I had outgrown my cookbooks and was searching everywhere (on the internet) for the next step of pizzamaking knowledge or instruction. Google searches often led me to both the front of this site AND the boards. However, I never took the boards seriously enough to look into them deeply because I knew they were part of the same site that wasn't really useful to me. So I just assumed the boards were equally not useful to me, and I didn't look deep enough to find out that I was wrong about that. And the only reason I know for sure that I did often find my way to the boards is that I remember coming across the moniker "Pete-zza" more than a few times. That's kinda unforgettable. Especially knowing what I know now.
So anyway, that may be something to think about.