Currently, I use the notes app on my phone to jot down my personal thoughts and ideas because the EN app is too cumbersome for "quick, before I forget" moments. I then occasionally copy them from my phone to EN later for long term storage.
Going forward I will just write a web based client to store them in a database on one of my servers.
I'll still use EN for the Web-Clipper (which is brilliant) as those kind of notes aren't personal or private (for me) and I'm not about to try and reinvent THAT wheel.
I'm not ignoring what you mentioned earlier about the AI only being active when you click the button. I think that is good. However, I see the feature as an avenue for privacy issues in the future. Either due to someone accidentally hitting the AI button or a coding error on the dev side or policy changes to increase shareholder value. Especially with the current zeitgeist of trying to shoe-horn AI into everything imaginable these days as a selling point, before we have regulations and studies to analyze the irreversible harm that it can do. Facebook started 20 years ago and it's only in the past few years that society in general is taking notice of the psychological harm it has caused and that it will never be held fully accountable for. AI is in a position to potentially cause much more harm, much faster.