Being able to "greylist" scanlators at our discretion would be handy. For instance their uploads would appear as "greyed out" or somehow visually distinct on the front page + chapter and follows lists. So you can still click through and see them if you really want to...
When reading through, if...
I've followed the Amazon links and bought Japanese Kindle editions via my amazon.co.jp account for stuff I really like. I like to daydream that I'll be able to (easily) read them some day. *sniff* Some day. In the meantime I'm just supporting the authors when I'm able.