That is a wild accusation. I need to install a nightly of Kate and give it another chance, if it's truly as good as you say. Np++ is starting to annoy me, with it's constant reopening of like 50 files every time it's started lol.
That's not a fix if you still want to be notified when files change under you but without a modal that prevents you from doing anything else (including closing the file it's nagging you about). Kate (or any other application using Kate's editor component) does this much better by displaying a non-modal notification bar at the top of the editor similar to how browsers have implemented non-modal notifications.
N++ can tail and follow files and colour code the output. Smashing!
Kate recently opens a default start page which I now find annoying. Kate also opens all previously opened files by default.
All of these things are defaults that are easy to override but changing defaults can be annoying, especially when you have been used the previous defaults for more than a decade ...