Members with shared interests, would it be useful?

Would it be useful to have something where you can filter through forum members to find those with similar interests, hobbies, goals or skills that you have? What kinds of forums would benefit from that type of add-on?

You can accomplish this with a spreadsheet during new member onboarding.

You can then use that to network members together, establish relationships, and thus build loyalty on your community.

I used to do this back when I was paid to be a Community Manager on Copyblogger.