LoL and TF2 don't have subscribers to contend with, which was my whole counter point. Not to mention the fact that they are clearly not MMOs nor do they have persistent worlds and so on.
As for measuring success in an MMO, that's going to be subjective admittedly.
DDO? I mean, sure? I can't track down subscription numbers, but I cannot see them being that high or at all comparative to TORs. As for their F2play model it mentions in the fine print that:
Source.
As for LotRO? Some minor features can be purchased for a one time fee, such as "Shared Banks" and "Wardrobes" but the real meat, the gameplay is relegated to a max of 4 in the example of skirmishes but you can purchase more, and it mentions nothing of permanency throughout there little
chart.
Unless I am missing something perhaps?
That's hardly "literally every successful F2P game has a mechanism to do so" Right?
That's a whole lot of hyperbole, that I think is stemming from your disappointment with the Cartel Coins, which I hope they address mother fucking soon.