The Narutard kids without access to their parents' credit cards are the problems with the site and community. Why accommodate them when you could accommodate potential developers that would contribute something WORTH HAVING!
The problem with this theory is that most users on byond are 16 or below in age. So I doubt this will have a positive reaction and may just end up being the death of byond.
I mean, XNA was free to develop stuff with, I had a pretty nice looking example 2D game running before I got over it and came back to BYOND. And XNA required a yearly membership to deploy your games on the XBox 360.
Considering the price for that at the time was $100.00 US, I'd say paying $24.00 US isn't so bad for Flash stuff. Pretty safe bet that more people have access to Flash rather than an XBox.