I think many of them have a crippling addiction to reddit. Might be scary to think It could go away indefinitely. Not saying they are justified. Most angry/dumb comments on the internet are from 14 year olds, or people who desperately need to touch grass
Reddit has always had changes that made people want to leave. Removing CSS was the first that comes to mind. Now that lemmy exists it could be seen as a new platform to jump to every time reddit does something dumb or anti user. I have high hopes for lemmy