Is it rude to defriend someone you've known for years but haven't seen in half that time? Facebook has definitely helped me maintain friendships that I treasure through the decades, but there are also those folks who are just names on my list and occasional blurbs that are just noise on my news feed. I've made it a point every few months to consider which people haven't had a dialogue with me in a certain length of time and defriend those who don't stay in touch, even through social media. Is this a bad idea? I have considered reconnecting with a couple of friends after seeing their names tagged in old pictures, but I don't know what I'd say to them other than, "Sorry I defriended you before. Do we have anything in common since the last 20 years have passed?"