I think it'd need too many steps. People want just make screenshots, or take real pictures and just share them.   
In XXI century where gaming world mostly exist in high-tech lands (Europa, America, Asia, Australia), internet connection, bandwidth is quite enough for smooth experience even for large images.   
Personally I think more problems with large images eating my RAM, where after while my system is frozen due to no any memory left. 
Once I opened Military screenshot thread, Firefox ate 2 GB of RAM, almost everything. 
I had to reset system lol.