• Steem fees to swap SMTs? I know we want Steem to remain “fee-less” but I feel like some fees need to happen that scale with use. Steem would remain free to transfer, etc so I think we could maintain the “fee-less” slogan
• Instant Power downs that scale with amount powering down and time? Say 10% fee for 1 day, 8% for 1 week, etc.
• fee to use more than X number of tags on a post? For people who want to try to earn 6 SMTs, you will need to pay for that privilege
• fee to increase payout window for post beyond 7 days? Each vote would still take 7 days to payout but if you pay a fee, your post can earn for let’s say 1 month instead of 7 days.

Just thinking out loud here.