To take the literal word lobby, what about an app that creates virtual lobbies for a product or company. People who are thinking of buying a particular product

To take the literal word lobby, what about an app that creates virtual lobbies for a product or company. People who are thinking of buying a particular product could enter into a lobby that is populated by people who both champion and denigrate the said product. Some lobbies that would be interesting: Apple Lobby Lisp Lobby I guess these are like forums, but are different in that they are built for lovers and haters inclusively.