It does filter ads, even if you don't pay, but they don't see that as a sustainable solution. I agree BAT isn't cutting it, but BTC fees weren't compatible :)
Even if you used btc or bch, how do you incentivise users to pay?
Agree. Though I think Moneybutton would be better if it could display a QR code as a fallback. It's burdensome to have an extra seed to store just to use MoneyButton.