Thank you for your valuable feedback.

While I agree with your point, but 10k STEEM (That amount, by the way, can be a variable controlled by witnesses with respect to current market price of STEEM) seems to be too high economic barrier to entry just to play. And letting people easily play with SMT is what we want. We just don't want leftovers all over the place after such play&forget scenario (not to mention malicious reasons for resource exhaustion)

Piston was replaced by steem-python.

BTW, you might want to add #steem-dev and #smt tags for better visibility in relevant categories.