I think Facebook is just starting to irritate, the trouble with having friends and neighbours linked to your account is you have to weather their views and opinions.
You can't debate on there, it's everyone just posting what they think and then being nasty to one another with threats of 'if you don't hold the same view then delete me' or if you don't hold the same view I'll delete you.'
At least within a forum half the people you interact with you don't know personally, you might know one or two and when fall outs happens it happens in an online place. Whereas on Facebook differences of opinion are taking place online and in the street, town, next village/town on.
I've muted so many acquaintances on facebook there's not a lot of updates each day

It does seem to be becoming the place to attack, to divide people and stir up trouble, both locally and nationally.