He only wrote 80 out of 160+ episodes. And some of them were bad (THE DOG)! Sure he wrote The Contest and The Parking Garage, but he didn't write The Outing, The Bizarro Jerry, The Junior Mint, The Library, or The Airport. Sure he's a big reason why Seinfeld is great but some of the best episodes of all time didn't have "Written by Larry David" posted on it. So quit saying "The present episodes aren't as good as the last episodes, why, because Larry David is gone". And come on, this season's episodes haven't been terrible (Except for when Newman tried to eat Kramer), its just that you guys don't loosen up. The Dealership was a very funny episode if you didn't put on your "Compare this one to the older ones" mentality and just tried to enjoy it.
Oh yeah, I am a Larry David fan and I'm glad he's writing the final episode but he's not the only reason why Seinfeld is so great.