I'm not sure what the J2O staff's position on this is/will be but it seems it at least would have been appropiate to involve them (us) into the project when you make programs that use their (our) site storage space and bandwith in such a way (and not giving any credit in the file). Essentially you're building your program onto our paid for bandwith and space (paid for by Bobby + generous donators), while circumventing the site framework we've built (with the possibility to review downloads, for example).

I'm not saying it's disallowed here, or allowed, or that you should kill the program. I do not know what our position is, and I'm myself not particularly bothered by this. But the way you went about this seems not right. Just throwing it up for your consideration.