Let me make an analogy: I work downtown in DC in a lovely area called Penn Quarter - near the National Archives, several magnificent Smithsonian Museums, with tons of great restaurants and classic bars, halfway up Pennsylvania Avenue between the White House and the Capitol Dome.
But it only takes about ten homeless bums and maybe two paranoid schizophrenics accosting people on the streets to give the whole neighborhood an edge of danger and depravity.
So, on this board there are about twenty dedicated Kentucky haters, some with two or even more "user names" who for whatever psychotic reason are willing to spend massive amounts of their time pretending that all is wrong with the world of Kentucky basketball, disparaging the coach and the players and so on. And they aren't even well hidden -- just ask yourself if you saw any of these people celebrating the win over Illinois, or the SEC win over Oklahoma or several gutty top-15 wins.
It's easy to see what is wrong with this board. But just like the laws and police apathy make it tough to just sweep the streets of my work neighborhood and haul off the psychos, it's hard to get the bacterial parasites off this board.