GarageGames is essentially a zombie at this point. It was bought and sold multiple times, pretty much everyone left, and development of Torque3D was completely handed over to the community. There's a steering committee now that makes all the decisions and pulls all the changes; it's just hosted on GarageGames' GitHub repo.
https://forums.torque3d.org is what you'll want to use for anything related to the modern version of the Torque engine. There's also a Discord somewhere. They're currently working on a massive 4.0 update that's supposed to come out sometime this year so the engine itself isn't dead, just GG.