Although it was the final episode of the series, it did leave a few unanswered questions. i.e. what ever became of him and Donna, did Lamont ever get married?, was Fred EVER going to get a new kitchen, a new house? We knew that he was NEVER going to stop scheming, that was one thing that the series and THIS episode played upon.
It was also refreshing to see an African-American man of his age (on the show) trying to better himself by going back to school and getting his GED.
Maybe it was a quiet message to the south L.A. Community of the late 70's. Whether or not it had an effect I cannot say because of the fact that I have never lived there.