The message still shows up for me even with ABP deactivated, but the amount of ads is atrocious.
I see why they do that, but they can't possibly expect anyone to think that it's a good idea. It's one thing to put up a banner like MDL does, politely asking (Support MyDramaList by whitelisting us in your adblocking software), but another to just block the subs. With this attitude I can totally see why subbers wouldn't want their stuff to be uploaded to streaming sites and it doesn't really make me want to "support" GD.
I saw people complaining about it to them on facebook, maybe they'll drop it if people complain enough, best solution until then is probably to find other sources.