Hi… We have been chewing on this for a while, and come to the following conclusion:
When inserting an image, we will no longer pre-fill alt text from image name. Also, if the alt text field is empty - we will show a background text in the input field, saying “Decorative image”. Also, this will store an alt=“” in the data, just like we do today.
So, there will be no forcing of selecting “decorative”, and no “coincidential” alt texts.