We’d probably never come to a conclusion, which solution benefits the most. There’s a huge amount of people, who only take snapshots of PDFs, put them into Anki then create image occlusions. For them, not shrinking is probably better.
Why I chose to do no-shrinking by default is that it’s less confusing to a new user. That way they can discover the feature by themselves, and use it as they please.
Your use case could still be covered by an add-on though. It would need to:
- Offer an option to add
data-editor-shrink="true"
to all images (of a notetype? of a deck?) via Find&Replace. - Add
data-editor-shrink="true"
to all images on paste.
This could certainly come in the future. At the moment Anki will resize it to fit in a 250x125 rectange. Though it should probably be a noteype option, or even a field option.