So just hope you will never be the one against the five when five people want to give you a beating...
Yes exaggerate the claim to be completely different from the real situation. If you think Facebook has it's demerits then be consistent and say the same about all of the Internet. Because your Grandparents aren't on HN, HN should be banned as well.
Surely that depends what the thing is?
Facebook is not that thing for sure. There is someone comparing it to Tobacco in some other comment. HN really is too much sometimes and often in its own bubble. The same arguments can be made against the Internet as a whole.