At first, I misread the post you are replying to; maybe you did the same. The poster was asking if your app supports PieFed, not because PieFed fixes the issues that you identified, but because that’s the site that poster uses.
In other words, they may want to use your app, but would need it to support PieFed since that’s the site they use.
I really considered whether I wanted to comment, but my desire to procrastinate at work won out.