Edit: adding, it's also surprisingly... slow? I noticed some lag as I moved my mouse around. I don't know if it's because of the website or my browser (firefox) or my OS (Ubuntu) but I don't believe there's any reason for lag here so something should be fixed.
My autocorrect also didn't work. I did get the red squiggles on a misspelling but no suggestions on right click. Again, not sure if it's something wrong with the website or something with my setup (it works fine on other sites).
You're right about the fading — if you keep writing in one long block, lines stay. I write in short paragraphs myself, so I hadn't noticed. I'll think about how to handle this better.
On losing text: lines don't fade the moment you hit return. They wait until you start typing again. I found that fading on return alone left the screen empty at exactly the moment I needed to think.
The lag on Firefox/Ubuntu is something I'd like to look into — I haven't tested on that environment. The autocorrect issue is likely a browser limitation, but I'll see if there's a workaround.
The frustration at the start is real. It doesn't fully go away. But for me, it slowly became something else — a feeling of gently letting go of what I'd written.
I thought hard about the reader mode. For long-form writing, an app where you can never look back is just too limiting. In the end, I decided to keep both.