Hi, loving Blocs so far!
Having used a different drag+drop editor before, I got used to its automatic generation of different image files with appropriate sizes / resolution for mobile.
Say I load a bunch of high-res photos into blocs, the app could automatically size them down for lower break-points. This would improve loading times, take some hassle of the designers shoulders and avoid the need to fiddle too much with the asset browser, which can be a bit flakey at times.
I am aware of the 1x/2x/3x multi-res image input options, however adding three files for each image becomes a bit of a chore that appears to be easily avoided.