With as many different parts and manufacturers that there are, I don't think that they could all be lumped together. It could possibly be put together if everyone was building from scratch, but then we might not all have the same recommendations for the parts or manufacturers.
IMO, it wouldn't be feasible to make one big thread.
BTW, if some portions were deleted when people got their recommendations, then the post counts would go down. And it would go down for those that ask and those that answer.