If its something you are into, then finding out who shares a common interest has some value.
But, I hope you aren't actually serious that you think you would get along better simply because they share that interest with you. People are a heck of a lot more complex and dynamic than that. For example, I enjoy playing poker, but I wouldn't expect to like someone better because they also play. Heck, half the people who used to play in my regular game in grad school were complete assholes.
And for the record, I don't partake.