Micro tips should be free and trivial with SAFECoin, according to the latest RFC (RFC 57: Safecoin Revised).
Surely throwing pennies or less at something decent, at the click of a button or two, better rewards good content?
I am not a fan of engineering complex solutions, which may not even hit the target. I understand why people want this to work, but it seems open to abuse and of limited value when compared to the alternative.