Info on one of the most frequently asked questions in our help groups these days. This post explains the issue's background and a workaround you can use for it.
I am convinced that once I hit 500 friends I hit a fatal cap; Now, each time a person is added it randomly selects one to drop because I keep having to re-add people I have known for years. To make a new friend, one friend must die, choose wisely.
maxwell_graf: you hit the ceiling on your monkeysphere. that's it, you can't hold on to any more people as people in your brain/list. (i heard that LL used Dunbar's number theory early on to signal when to retire a last name, so it could even be an actual limit)