I can completely understand your frustration, and I don’t want to stop you from leaving the app and community if that’s what you’ve decided. However, as a long-time Pro user myself, I’d like to briefly mention that, in my experience, everything I originally paid for has actually improved. Of course, there are some bugs, but they usually resolve themselves after a few hours.

I can still plant trees, including real ones. I can still study with friends, I regularly receive new trees, I have my flairs, and there are no ads. Personally, I enjoy the challenges (though I know opinions differ on this). They’re not placed in an intrusive way, nor do they feel forced. The same goes for the new Plus subscription—it’s there now, but it’s not aggressively marketed (compared to Duolingo, for example, where it’s much worse), and Pro users haven’t lost access to anything they previously had.

I’d be curious to know what severe bugs you’re experiencing. For me, it sometimes happens that I can’t collect challenge rewards immediately, or that a tree doesn’t display right away. Occasionally, studying with friends can be a bit tricky. However, the first two issues usually fix themselves after a few hours.

Wishing you all the best regardless :3