This show is brilliant, but I don't have very many friends who watch it...
I drove with the woman next door and long-time friend up to a friend's 60th b'day, and talk moved to favorite TV shows- she mentioned some she liked I knew nothing of, and vice versa.
I brought up Community when we got to sitcoms, and she got annoyed and said she had given up on it. She said she just couldn't identify with any of the characters, that essentially they had all become annoying buffoons. I inquired about Annie, maybe the closest to a normal, sympathetic person (Shirley might qualify too), but she grumbled about her character as well. I suggested the show was really into surrealism, and she grudgingly agreed.
I then mentioned Parks and Rec, and her mood softened and she said "Oh, I love Parks and Recreation (as do I).
Community's failings in ratings may well be due to an ensemble in which everyone is broad and flawed and stories that are satirical and send-ups of contemporary culture. Lots of time when it is at its most imaginative it is also not as funny as it can be.
One thing about the show that warms my heart is Richard Erdman as Leonard. Towards the end of my days in California I ventured with some friends up to Pasadena to one of those mini-conventions where one could encounter actors who would sign autographs for a small fee (the late Patricia Neal was there, and her line was extremely long). I walked down the line of supporting actors of yore and there was Mr. Erdman, sitting at a little card table with a stack of stills, looking somewhat melancholy. We smiled briefly at each other, but I kept walking. I certainly remembered his face, and he had a memorable role in Stalag 17 to name but one film. Imdb traces his career back to 1944.
I was more interested in the guy who had linen-mounted posters of the great Spanish-Mexican artist Ernesto Cabral, and I bought one.
Fast forward four years, and at the November or December of his career, Richard Erdman is in one of the smartest and most respected shows on television, and doing a bang-up job too. His web restaurant review bit at show's end was quite funny.