Google worked great to give you information on eating disorder survivors, but if you were actually after the computer game mod you would have been out of luck (at least on the first page). More people have eating disorders than play whatever game that is, presumably, so you are stuck getting results for whatever the rest of humanity things is more important. Which is great if your query aligns, but not so much if you walk the least trodden paths more than most.

I agree that DDG might not be as useful for finding out what ED survivor might actually mean, but Google didn't list too many options, either, it sounds like. If you hadn't been wanting to know the most popular definition but a more obscure one, Google would have not been useful at all. This is something I run into a lot. Some popular uses for terms means I have to add extraneous search terms just to get around them.