I think one of the key reasons Ridley fans here get so angry at specifically Shokio's videos is that although there ARE a lot of other detractor videos on YouTube, Shokio was the root source or at least the cause of spread (to my knowledge) of the "Too Big" **** that has plagued Ridley fans since Brawl, and although that argument is easily debunked, it's impossible to deny that without Shokio spreading that, we as Ridley supporters would have not only a good few more supporters, but we wouldn't have such a hard time supporting him. Have you tried supporting him elsewhere? You get your face rubbed in dirt, man. People believe Ridley is genuinely illegible for a spot on any Smash roster, usually due to his size, and will go to extreme lengths to step on supporters due to this. If Shokio had kept his hate to himself and hadn't felt the need to make something up to antagonise (sorta) Ridley fans, we could have a much easier time with supporting him rather than it being a challenge everywhere we go.
As RabbidLuigi said, Ridley is the character you whisper quietly that you support, because you will get jumped on. This thread is essentially a safe haven you can use to talk about the guy, and even then we get a few detractors. Shokio made himself popular with people by spreading "Too Big" around, it only makes sense that Ridley fans are going to hate him specifically.