I'm surprised MS don't just strike a deal with Paint.NET [1]. It would help fund a worthwhile project (which feels as simple as Paint, but is significantly more advanced) that appears to be run from donations only.
between the shitty ads spread everywhere and the whole drama over source and licensing, i don't want anything to do with it. i'm content to use krita, gimp (both free) or affinity photo (inexpensive).
I also wondered why it defaulted to saving in JPG. When I opened my .ora save file, the colors had changed in a way that affected the antialiasing. It looked pretty bad.
Anyway, while I wouldn't recommend it for illustration work unless you save often and save to PNG, for simple image work and even charting it is pretty nice.
My brain just doesn't grok the way of working in GIMP so I highly appreciate the general simplicity of Pinta. Somehow simple tasks are really complicated in GIMP. I usually just want to draw primitive shapes, move or resize image content, add text. Exactly the MS Paint-style basics, but it's a pain in GIMP.