I love MOBA. The art is quite spectacularly awful. But what really makes the museum so wonderful are the blurbs on display with each piece of art. They are written in the style of Very Serious art museums (the art is "exploring" some issue, or "asking a question"), but tuned to the particular piece of horrendously bad art you are looking at.
They used to be in the basement of the Dedham theater, when I lived nearby. Then they had the decency to move to the basement of the Somerville Theater when I moved to Somerville. But they have moved again, to Dorchester. Fortunately, not too far. I went to the (re)opening in Dorchester, and actually got to meet the couple who started the museum, and got the story of MOBAs birth firsthand.