I request for creation of performance category under stackexchange.com, just like unix.stackexchange.com or dba.stackexchange.com , etc. I think performance in a IT field is as important as any of the other fields in IT. I can't stress more the importance of performance than like below.
If the software/hardware performance badly but works then it is no more useful than a non working code. The user would be pissed off and would never use it again or more serious he could claim for a refund (which is perfectly normal). Performance is especially important in field of product development.
More so in the world of today's online services, like social networking, photo sharing, video streaming, etc. which are all resource intensive and hence performance team has a big role to play here. But my Google search on performance on Stack Exchange returned nothing like a dedicated site for it. So I think it is high time we raise a dedicated site for this. Performance is important in any field, so I wonder why Stack Exchange people have not considered it seriously? Please prove me wrong.