I agree with everything you have said relative to technique. However, I still like to see and read and analyze and ruminate over recipes. That is where my inspiration and new ideas come from, and they serve as a good starting point for me to apply whatever knowledge and skills I have acquired. The value of technique is in being able to detect faults in recipes, fix them, or improve upon them. But technique, as valuable as it is, can't exist in a vacuum. It has to operate on something and, to me, it is recipes. My concern as far as a recipe site is concerned is how it will be set up, managed and policed so that the forum doesn't get into trouble for whatever might end up on the site. I am not worried about the recipes per se. In fact, most of the recipes I have seen at this site reflect a great amount of thought, care and technique--far more than is common even in cookbooks.
I do agree, however, with Foccacciaman that it would be nice to have thread for doughs, sauces and toppings. Most of the innovation in pizzas tends to be with designer or gourmet pizzas, but doughs, sauces and toppings are areas that have been worked over for time immemorial, so much so that the greater problem is separating the chaff from the wheat (no pun intended). It would be up to us as individuals with individual tastes to determine their merit.
In addition to what Foccaciaman proposes, I would also like to see threads for such things as sources of ingredients and pizza equipment. Much of that is currently scattered over the site, but might, over time, be collapsed into more narrowly-defined and purer threads, such as threads for cheese, tomatoes, flour, yeast, and pizza equipment--from stones, peels, screens, pans, mixers, processors, tools, etc. To the extent that posters have had good experiences with particular vendors or suppliers, they could so note those experiences in the applicable threads, whether the favorable experiences relate to quality, service, breadth of products, timeliness, cost, or anything else. This may mean our having to be more attentive to and being more careful about staying within the definitions of the threads that are set up.