(TrendHunter.com) The Tinder Plus One feature is being rolled out by the dating app to provide users with a way to find a wedding date when they're hard-pressed to find someone to join them. The feature can be... (TrendHunter.com) The Tinder Plus One feature is being rolled out by the dating app to provide users with a way to find a wedding date when they're hard-pressed to find someone to join them. The feature can be...