[BalefireX]

Again pure conjecture:
At most forums I am a member of, Watercooling is a means to an end - the "how" and "why" are not as important as the "what" (the results). Procooling is much more about the "how" and "why" from what I've seen; it attracts those with industry pedigree, scientific/engineering backgrounds, and serious DIY enthusiasts. I suppose the larger purpose is taking water cooling forward, to the next level. Whether the end user appreciates it or not, blocks don't improve their performance themselves. The people here that are contributing to that aren't going out and buying premade blocks, in fact, some of them are designing the blocks that other people are buying. They're throwing around ideas, sharing information, and providing criticism - something that is invaluable when brainstorming, but frowned upon in so many other communities.