Don't get me wrong here, I like the Noble titles as well. Not so sure about calling it The Moot though.
Depending on the copyrights issues if any, I'm leaning towards supporting the idea of calling the subscription option a Traveller's Aid Society Membership. Rather than the first level being Peer (iirc) it'd just be noted as a TAS Membership, just like in the Imperium. Higher levels (if retained, and I also support the tiered structure) would come standard with the established Noble titles (perhaps in addition to TAS Membership notation), or another idea that had been punted around once or twice iirc, personalized titles. So, Darley51, instead of simply "Citizen: Soc-11", with a subscription you might be able to pick a more personalized notation. Perhaps IN Captain, ret. Or DD Scout. Anything in reason, not copyright protected (unless covered by Traveller license I'd guess), and reasonably tied to sci-fi/Traveller. Or maybe for publishers wanting it, something personalized to their work. As it is, I believe you can hide your title as it stands now, iirc it's under user group settings, you select Moot member or not.
But this is all at the bouncing ideas stage. Nothing is likely to be settled for a bit yet.