I'm bad. I unfriend people all the time. About once a year I go through my friends list and if we haven't spoken directly on FB (messages) or we don't comment on each other's posts every now and then (showing that you do keep up with me and vice versa) then you're gone. Sometimes these people will refriend me later and I'll decline. If we're not into each other's lives I see no point. I also will not be friends of someone who is a friend of someone else. I don't need a large friend collection just to have one. I like to keep my "friends" around 150- and at least half of that is family.
Yeah, I did delete some people during the election season because of hateful or ignorant things they would post. I hid even more. 'Aint nobody got time for such drama!