I think this is a good point. Users get desensitized to this kind of stuff and learn to filter it out/stop noticing over time. Psychologists or UX designers mi

I think this is a good point. Users get desensitized to this kind of stuff and learn to filter it out/stop noticing over time. Psychologists or UX designers might have better input into the right mechanism. I personally would guess it requires a more forceful approach. Periodically force change of focus to the tab or popup or whatever while going about normal work. As the user voluntarily installs this, maybe the threshold to be annoyed by it is a little lower and can be taken advantage off.