why purposeful discourage participation?
A bare link to unexplained offsite code is hardly more participatory than actual spam.
if you can do the the consideration and voting, you could just as easy copy/post the code from the link
I'm sorry, but now you're just being ridiculous. It would be at least as easy for the OP to c&p the code, and the onus is entirely on the OP to do so. Maybe, if there were already significant discussion around the code, i might, as a moderator, be inclined to suggest to the OP that he c&p the code rather than link to it offsite. But even that tenuous standard is very far from met in a case like this.
I reckon we are the only monastery ever to have a dungeon stuffed with 16,