It's information we should be given. It doesn't need to be all that detailed, either. But the simple fact that it took me even running this myself to see the exact amounts is a serious problem.
This is especially confusing in that one of their primary competitors for tipping sources is places like Ko-Fi. Either here on Tapas or on Ko-Fi, all you need is is access to a credit card account or a paypal account. And you can send funds to whoever has their set up.
The difference being on Ko-Fi the artist gets to keep approximately 97% given as the only loss is the Paypal fee. And Paypal auto converts currencies, and gives you a breakdown of everything along the way. That 2.9% + 30 cents is a fee I am more than happy to cover for the convenience of being able to pay and receive payments from anyone in the world in an instant.
And I'm much happier knowing that if I give an artist $1, they're not going to end up with just 48 cents that they can't even access because it's only a fraction of the cash out limit.