I visit facebook quite often, but I am not a very frequent poster. I am member of two groups (one related to a prog band, the other has to do with a hobby I practice every now and then). And there are two games I like to play on facebook.
But I have some objections. I loathe the begging for liking and sharing. And I am not inclined to put my everything on display. Moreover, I think that those "social media" have too much power over many people, just like those addictive smartphones (which I stubbornly refuse to use).
To me, facebook remains veestboek, the book of farts and burps, after a forgotten word in my native language.