I agree the dots are very difficult to see on enemies. As OP said, the green highlight helps but when you are fighting one enemy that has more than a few people dotting it up it becomes confusing fast. I like the idea that all dots automatically go to the left side of the boss that are yours, making it easy to see if you have 1 or more dots on the target plus giving you an idea of where to quickly look so you know when you need to refresh the dot. Another option, and though it may not work for all cases but would probably work decent for fates is to toggle in the options menu to only display your debuffs. Hopefully adjustments will be made in the future to help with this issue. If not, it's going to be a rough couple of months before add-ons can be used so we can get one that fixes this problem...