Before Gail Simone went crazy

No.130223621 ViewReplyOriginalReport
Back in 2015
>I had a discussion at ECCC with someone in comics, I’m not going to mention who, about how busy the convention was, and they said that some of the attendees were probably just “Tumblr fans.”
>I asked what she meant, and she said that she felt there was a growing group of fans who love the characters and love MOMENTS of stories, but don’t read the actual comics ever. She said that they will buy a CHARACTER X t-shirt in a heartbeat, but don’t own any graphic novels.They will reblog a scene they like from a comic, but never go to an actual comics shop to get that same book.

Which comic/character's fanbase describes this the best (assume tumblr means social media as a whole)?
And why is it Gwenpool