I'm not saying don't connect with people you know, even people you know loosely . But I am asking why would you want to connect with a complete stranger whose main goal is to increase the number of his or her connections? If there's no relationship, there's no need to pretend one exists.
Here's some advice for everyone who want to add more connections - get out and meet people. Go to conferences, networking events, seminars, volunteer for an organization that resonates with you, join a neighborhood group, etc. Meet people, have a conversation, think about what value you can offer them, then ask to connect.
Image by Wen Z.