I like it too, it's just that I have a hard time deciding whether or not to upload images that are not very high res. I feel like they might not be appreciated by many people...but I guess I was wrong!
I know what you mean. When I see low res images on pixiv I usually go :( but if they are good I save them anyway and appreciate them for what they are. Higher reses are nice but nothing wrong with lower reses that are of awesome pics.