All my tags are uploaded on imgur and i have not encountered a quality reduction. If done on photoshop all i did was save as .png. unless its like photobucket whenever i upload a large image the quality is reduced and i went to settings to remove resize.
-Go to settings on imgur and check "Image Quality"
If you already checked that then i have no idea lol
-Go to settings on imgur and check "Image Quality"
If you already checked that then i have no idea lol