Yes that's very thought provoking - "incentivize early purchases more than later ones."

Please let know me when you ponder more on this. We'd love to hear and implement it.

I think it is important to have an asymmetry between buying and selling: i.e. you can't get a full immediate refund by selling.

I haven't sketched it out on paper yet, but there's something here about time-preference and wanting to incentivize early purchases more than later ones.

Undisciplined

oracle

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mega_dreamer

Thanks.

The real of reason of **buy/sell** was this person was trying to double sell (but in the UI it shows up a buy/sell, buy/sell). From the software perspective we've fixed the issue of double sell (parallel API attacks). 