StumbleUpon | Community
Currin:
Hey there - Currin, Community Manager here, to answer your questions. First, thanks for asking! StumbleUpon no longer support the "Visitors" tab. We are looking for more interesting ways to help you engage with other people on the site. Please let us know what you want to see to help you find other Stumblers. In regards to the Additions with subcategories, we'll be sure Product hears this request. In the meantime remember you can always use the Search functionality if you are looking for something specific. Thanks so much for your note! And you can always chat about feature requests in our Help Forum: https://getsatisfaction.com/stumbleupon_help_center