I think the way to discourage hoarding behavior is inflation. Cryptocurrency follows similar models of scarcity like Bitcoin. Some cryptos have tail emission. None of them has any meaningful inflation.

I designed Bitflate. It's a cryptocurrency with 7% inflation. The rate is moderately high to make it the opposite of Bitcoin. But it's not too high to cause hyperinflation. Bitflate is a Bitcoin software fork. So there are possibilities to create hybrid cryptos that have inflation rates between 0 and 7%.

Check out my project: https://bitflate.org/.