I think it's just in WIP stage. But is there really a need for one? Because the thanks value will just decrees when the coins come more.

More thanks = lower cost
For an example.
1 thanks = 0.1$ value, but if there is a big interest that will increase the amount of thanks it could be 100 thanks = 0.1$

The amount is just a number, the value is what's important!

Still on test !!
we will set a rate later

it's better to "have no interest" at all bro... "interest" is something bad...