Stefane,
Suffusions supports a lot of Social Networks and the condition is not that it fits with SUffusion but that it fits with your expectations and your demands for data security (!) ;=)
have a look at Visual Effects / User Profiles and configure there your settings, you will find the list of supported Social Media Networks
other networks if not an option here, can be integrated by Plugins for sure
so you have to decide which Network you want to use, that is the price of freedom
Cheers, Connie