she lives in Germany! She’s lived there since she was 13! She hasn’t said anything at all about the war! THE STRAW HATS ARE TERRORISTS! NICO ROBIN WORKED WITH THE 
DURING THE TIMESKIP! YOU WOULD 100% CONSIDER THAT TO BE TERRORISM! WHAT THE FUCK ARE YOU ON ABOUT 
Anime fans on twitter are terrible by and large. It is all about power scaling and "aura" shite or arguing about how characters are goats or washed, like a more annoying version of sports twitter. The reason that Zoro is by far the most popular character from one piece there is likely linked to that he is the least silly Straw Hat other than Robin.
Don't really know much of the ability of the general public to read, I just discuss anime here (very rarely) or on another forum that is even more niche.
You see this disingenuously rephrased as "character development" when what they actually want is for all characters to get more powerful and to become either cooler or more gender-role-inhabiting by the end of the show. The idea that these characters aren't your friends but pieces in a broader work is totally paved over by their homeostatic need for art that doesn't challenge them at all and isn't a message from another person's experience or ideas of the world.
See the visceral hatred people have for characters in Evangelion, particularly Shinji and Asuka.
This bullshit also ruined Star Wars fandom for me. "Who would win in a fight" with midi-chlorian count babbling like some sort of fantasy football league.
Everyone on Twitter is terrible and always has been