facebok is like the internet a tool it depends how it is used.
i use it to promote a music festival i might visit it once or twice a day, people i find aggravating, i block them or snooze them
howwever one such personwho i know personally ,i have had to stop coming round my house because he talks such crap a bit like a bleating old goat.
facebook you can switch off, but now i have had to block this guy from my house, what do you make of that,Steve