I agree that people shouldn't try to be so annoyingly unhelpful in just blaming windows 8 and calling it rubbish.
But it's also a valid opinion that people can have. If someone is asking for help however then you shouldn't really just post about how you dislike the OS.
Equally valid I suppose however is that people with Windows 8 problems would be better off going to get support from Microsoft, or atleast visiting a forum dedicated to computing/Windows.
My mum got a new laptop for Christmas and it came with Windows 8.
I must admit, despite using Windows Operating Systems for years, I've found it rather confusing.
Plus being on a laptop, which is annoyingly sensitive, I keep opening loads of windows and things by accident.