I'm sure that we'll soon see lots of other stuff come up on the C-Store: Energy Credits, Bank Slots, Special Ships (...!), and other useful stuff. Why not? If people are buying then Cryptic would be fools not to be selling.
I for one really only operate one character. I have two spares I created on a lark and to test Klingon stuff, but frankly there's not enough content to make one character very interesting. Is there something I've missed? I've hit virtually every episode that is thrown my way, and certainly all of the story stuff, and I still had to "grind" to make RA5. I don't see a "per character" purchase as being any different from a "per account" one. That's just me, though.
In any case, I already paid for the game. I pay a monthly service fee. I've paid for extras in the C-Store. I'm pretty much done with paying to accessorize my character rather than develop him.
lets see, You had a "join date" of 6-16-10, and today is 7-15-10. Sounds more like you were already leaving the game, since you only used your free month.
There's no need for that, many people use the 'free' 30 days MMOGs give to test how a game is and first impressions count a lot. If you had bought the game recently and saw all the complaints about things like this I imagine you'd be either put off subscribing or at the very least concerned over where this is all headed.