I had not so kind words for The Flash during its first 5 episodes and then it grew on me just a little. By the end of the season it went for me from not sure about this too saying it just ok for me it has a ways to go. But then for Gotham I loved it right off the bat but it took a lot of hits in social media news outlets and bloggers and more. But with some fine acting and well told story people came around and it grew. So for all of us nerds geeks or just fans, it all boils down to perception and how it is perceived in our own minds and there is the problem. But hey were humans and that’s what we humans do.
PS. A great article that discusses this is
Bruce Timm On Superhero Fan Outrage: ‘They’ll Watch Just To Complain’