Regaring the leaf gal: I wasn’t aware of that, thank you. In fact I did not crop in this case, as in my whole movie there was no clearer wider image of the leaf on this side nor the other. But I will take this new knowledge into account, I see your point. If I had known this knowledge, I would have made the footage differently. Since this is a leaf gal, it could thus be caused by an insect, or a bacteria or fungi. I will update the observation accordingly, textually.
Noted the concern for the loss of context.
However, I still think, following our conversations above, that cropping is important in many cases. As we discussed, to prevent loss of quality during the upload resizing which would otherwise occur. As, for example, with my image quality, every time I do not crop a picture, means that the uploaded image will lose image quality once uploaded, which can be detrimental for the identifiers. Think of, for example pictures of a bird against nothing but a blue sky. In such cases, an auto-cropping tool would be very useful and a time-saver. As long as a human keeps the oversight that not too much context is cropped away, or at least 1 picture remains with the context that would be cropped away in the other pictures.