That's a little off topic, could you put it in its own thread or one off the (MANY) threads already on finding members who exchange merits.
Yes. I don't think Talk Merit got his scores just because he was Jet Cash (they might just merit Jet Cash instead as that's his main account anyway).
And I certainly did not know Talk merit was an alt of TMAN before I gave the former some merit. It was the way he wrote and what he said that earned those merit points--which I suspect would be the case if I created a new account. Same goes for LoyceV, Hilariousandco, Vod, Lauda, and all of the other members who've earned a lot of merit.
Everything on your list is correct other then athe one about LoyceV. I think quite a few of their merits came from their "Pretty Address Giveaway" which is a great service he was offering the forum of bitcointalk. I don't think he'd have been as trusted starting from a newbie.
However, he does spend time around the technical support section so would be like nullius in gaining his merit anyway (without any trust being needed for him).