This is more in line with cooperative currencies.
Often, they offer a discount for using the currency as opposed to the main one (USD or whatever).
We are seeing a similar thing here.
I dont look at it as a tax as much as there is an incentive to use the Leofinance.io front end to post.
It is rewarding those who are supporting the ecosystem while also, hopefully, pushing the growth.
Posted Using LeoFinance