Here's another thread about selling bitcoin testnet coins:
https://bitcointalksearch.org/topic/m.1758171
Yes, I have read such threads before. I can see that it makes people mad. I don't agree that that should or will stop everybody.
It's odd when "making a coin valuable" is an attack vector.
It shouldn't make people mad. For testnet to be useful, we need people to use it. For that to happen, the coins need to have some value to them.
Wait, why do we need to use testnet for anything other than testing?
TESTnet
IMHO they should run a cronjob somewhere that does whatever they need to do to reset testnet like every month or something.
For testnet to be useful, it should simulate activities that people do with bitcoin. Since the devs are terrified of making any changes that might break Bitcoin, it makes sense to have a testnet that is Bitcoin on a smaller scale to test on. The devs aren't willing to make ambitious changes to Bitcoin, and if something goes wrong, point out that it's in beta.