I am just gonna be blunt, so please don’t take offense. I just went to that flightsim.com thing and it’s ROUGH… I mean, that website looks like it was designed in 1998. 
To be honest, I understand the thing with loyalty, but… if you want your product to be used by many, it’s not gonna happen with me. Last thing I want is create another account on another site for just one plug-in. 
Just a bit of perspective.
Like it or not… flightsim.to has kind of established dominance in MSFS freeware and it’s weird to use anything else at this point. Like Nexus etc…