This Canadian sitcom was hastily assembled in 1970 to comply with upcoming Canadian content requirements and had an extremely limited budget for both time and money. 130 episodes of the series were produced, requiring scripts to be recycled from 1940s radio dramas, line mistakes to be kept in the finished product due to time and money constraints, and virtually the entire series shot from one small living-room set. As a result of the poor-quality end product, the series is often considered one of the worst of all time.
https://en.wikipedia.org/wiki/List_of_sitcoms_known_for_negative_reception
I would be curious to see some actual data on how often this is the case. Which would be somewhat challenging to research since it would require separating the truly unpopular posts from the bandwagon effect posts. Sure, you can just look at early momentum, but that will be just as much a measure of how much divisive content is posted.