I think it would be very cool to save threads discreetly on your profile. This way, we can keep tabs on threads we areinterested in. There is the subscribe function, but I believe this is much more comfortable, considering the latter only reminds you if any activity happens, and I don't even know if it still works as a function.
We can already do this with unlocked content, so I don't think it would be much of a hassle.