I'm not really sure I want CAG to "improve" at all. Not only does the 'garage gamer' aesthetic give it some of its charm, it keeps it from expanding past a certain level of popularity. Now, granted, I'm sure that's kind of the point of CheapyD making this website his full-time gig, but if its audience expands past a certain point, won't it become counterproductive for most of us, i.e. people that can't hit it twenty-five times a day? Most really good deals are already of the 'blink and miss it' variety.
What will invariably happen at a certain point, I think, is that the visitors/users will become of such a number that no one is consistently getting in on good deals online, and the knowledge of "B&M" deals will make the competition too fierce. At this point, people will get fed up with constantly missing out on deals, only reading post after post of "Dead" or "OOS" or "Sold out--that was fast." So, yeah, the site can "improve" and expand its registered user base, but there is that 'point of inflection' to be considered.
P.S. More popular also means more trolls to fend off. Maybe for some of you, I am one of them, but that's your grave misconception, not mine.