I used to be quite liberal in accepting connections, but someday I realize a lot of useless connections is worse than lack of connections. For example, when you

I used to be quite liberal in accepting connections, but someday I realize a lot of useless connections is worse than lack of connections. For example, when you need endorsement, will you ask some random person for one? Will you feel safe and secure to share your personal stuff, even if it is work-related? I make it my policy to only accept invitations from people whom I know, or headhunters/recruiters.