Correction: that is how much they make WEEKLY on 'librapay'. That is not the only way they take money.
Not how much they get from other methods, like paypal and flattr. They also accept bitcoin, cheque via GNOME.
Not how much they get from other methods, like paypal and flattr. They also accept bitcoin, cheque via GNOME.
GIMP also has sponsors, though I don't know how much they contribute: https://www.gimp.org/donating/sponsors.html
That still isn't much at all for a program trying to compete with Photoshop though.