Ok. Right now I have more free time, and discovered than there are false/stolen/pirated accounts lurking in DA and faving some of my images. And if you salute them, they start bombarding with more faves from other false accounts. It is depressing, not life threatenign but annoying.
So, I started to follow this steps to avoid this problem:
1. Check if there is an icon. Most false accounts doesn't have an icon. It is not 100% sure but in my experience, most false accounts lack an id icon.
2. if you go to look in that fave page, you would notice if there is a pattern in the selection of fave images. I mean, if you have a drawing of One piece