Why are some people like this on Facebook?

[Mike]

I have this one Facebook friend that is a woman in her 50's. She's a distant relative of mine by marriage (my mom's cousin's sister-in-law) and even though I don't know her personally, I accepted her request. She shares on average 75-100 photos a day on her FB page (I'm really not exaggerating), mostly of shoes, clothing, cars, celebrities and goofy jokes. She plays FB games and has the notifications set so that all the things she does everyday in her games show up in her friends' newsfeed. What she does that annoys me is for no reason, she'll tag herself in my pics, even ones she isn't in, and shares peoples' private family pics. One of my friends had a baby the other day and I liked her pic of the baby; the pic showed up in this lady's newsfeed since I'd liked it and without my friend's permission, she shared it for all her friends to see even though she doesn't even know this person. She does with her family too; she has herself tagged in all of her son's photos, even ones she isn't in, and shares his friend's photos on her wall for no apparant reason. She frequently shares total stranger's pics, often of their kids or family. What do you think the deal with this lady is?

[Gatsby]

Oh my God, are you friends with my grandma? I'm sure this is just what old people do on Facebook.