Introduce Yourself Mod

[Fynnon]

Hi, is there any mod for vB 3.8.x that will ask users to introduce themselves in the forum before using it ! My forum is open so they can see whats inside but if they want more access they need to register but i also want to ask them by PM or by a pop-up window to present themselves to the comunity before doing anything else...not forcing them , just asking them