I'm a Sam-leaning bi bro who still loves Dean, but I agree with you. Dean's character has become too stagnant to be able to write him effectively in fic. Writing as well as reading Sam-centric fic is much more fun and interesting overall. I hope that Dean does get some significant character development and growth next season though. I hate this rut that Dean has been in for the past few seasons (going back to season 5 imo).
Re: What has happened to Sam/Dean or Wincest fans?
I'm a Sam-leaning bi bro who still loves Dean, but I agree with you. Dean's character has become too stagnant to be able to write him effectively in fic. Writing as well as reading Sam-centric fic is much more fun and interesting overall. I hope that Dean does get some significant character development and growth next season though. I hate this rut that Dean has been in for the past few seasons (going back to season 5 imo).