I can understand this sentiment and it's one I've shared myself since I prefer going into an activity blind; really, [i]really[/i] hate spoilers and that's why I don't watch videos beforehand.
The thing to keep in mind though is that at some point everyone was in that same position and there are plenty of players that can remember how it was, allowing them to be forgiving when teaching players the ropes.
Sure, you're going to have run-ins with players that unfortunately don't, but you can't judge an entire community based on them alone.
If the arguments had been presented in a reasonable manner and they didn't run in here -blam!- like fire breathing parrots, I'd be much more inclined to have a conversation with them.
edit: squ awking is banned? Why?