I do that in DT and IS. Like the other day, I was trying to see how my red satin image was perfoming in IS, because it used to sell well for my standards, but not lately. Then I got a lot of blue, purple and whatever color but red. Also some images with textiles that were anything but silk.
But I'm not mean, so if I see some keyword to be added, I suggest it too in IS. I wished we could do that in DT, but only if we give 10 new keywords, and sometimes it's just a typo that I want to suggest (for instance, if someone writes "pare" instead of "pear").
Regards,
Adelaide