Free user here, so preaching to the wrong person here, honestly. Also nothing is forcing me to continue using this app, when a better competitor emerges, that's user choice for you. If you are happy with the app you're using, fine, but stop looking down on people if they find your favourite not satisfying.

I personally support OSS devs (or even non OSS) with donations when I use their stuff extensively and find the "everything must be free"-mentality dishonest and a punch in the face of the people putting the work in.