Well, I think actors and actresses have got to learn that they can't only be happy when the fans like them. Bad reviews, upset fans, etc. is, part of the game. The same disappointed fans are the same fans that were giving them attention and boosting their profiles, allowing the show to continue and them to book other projects.
For me, other than some vets and a few others, the acting on this show by some of the biggest characters was never that great, they were literally learning to act as the show went on. I came in on the end so if they are still that bad then I can only imagine the first few seasons.
Clearly the people signing the petition are just venting, and that takes nothing away from the hard work of people behind the scenes, etc. Saying they are disappointed for those people is pointless because those people are not praised or recognized anyway...they know the fans are not criticizing the BTS people, they are just taking it personally. The actors are not responsible for the writing, they just ha a job to do. Most of us get that, but they have to also understand fans don't have to like the writing for this season just because other seasons had better writing or they liked the show before. Each episode/season is its own and each scene its own performance. Some people will like it, some people won't. It is done and over, and Lord knows why they made some decisions that they did, but responding to the fans disappointment is not the way to go. Truth is had Twitter, etc. existed back in the day I am sure plenty of other shows would have gotten the same treatment.
All I can say is I am glad I am not a Star Wars fan.