So I've been trying
https://www.faucet-miner.com for a couple of days and today I reached the minimum payout amount, or so I thought. When I tried to withdraw the payout threshold increased from 0,0211 to 0,025 and when I reached that it increased to 0,027.
Is this some kind of a joke?

i saw similary changes seams there is a problem in sync
there seems to be a (buffer) between what you've mined , what you can min withdraw and what the min payout is , keep pressing withdraw button and watch the difference between the figures , worked for three payouts here ...
... then I gave up due to such a low payment ,,, perhaps when BTX = $10, 000 USD will it have been a mistake...
hmmmm..