I couldn't agree with this more. It goes back to the "should Twitter be taking usernames from people?" discussion we had here a week or so ago. Twitter is free. You're not paying for it. It doesn't owe you anything. Plan accordingly.
On the flip side, this begs the question "When is Twitter going to start charging to use the API?" It seems clear that there is some demand for it.
That's what I said the first time I got zapped for that, but the one said, "'Begs the question' is a technical term with a precise meaning and we need to preserve that precise meaning," and at that point I gave in.
"Once the classic meaning of a phrase begins losing ground to a less useful but more apparent one, it's time to tell it goodbye." - "beg the question", Roy Blount Jr., _Alphabet Juice_
If Twitter begins to charge for API access and reports even the slightest success in doing so, expect the rest of the social web to follow suit in the fashion of the economic bailouts.
On the flip side, this begs the question "When is Twitter going to start charging to use the API?" It seems clear that there is some demand for it.