I could listen to that guy talk for hours. Can't listen to his music, but that doesn't really matter. It is sad though, how easy it is to be "shocking." He's not shocking or outrageous, but he's funny and he talks with that cool accent.
I like it too. All the interviews with Rotten on youtube that I have seen are very funny. He seems a very intelligent and charismatic guy from the beginning, not at all the naive and influencable kid Sid Vicious seemed to be (judging from other youtube-clips only, of course).
I am not an expert on the Pistols or Rotten or anything he has done since then, but I had to learn that everybody hates him for this butter-commercial