Well, for me, it was usually because of the high quality commentary, wherein folks had rational discussions about the content of a piece rather than resorting to Reddit-style content-free snark that neither educates nor illuminates.
All the dissident views about polls being outright wrong were met with disbelief when it was clear to anyone who looked that they were blatantly off. Mainly to create social proof to vote Clinton.
Funny how times change, eh?