Very interesting... I took a couple of those tests just now to see what you were talking about. Both tell me I am severly depressed... Which I know already even though I have never been to see a doctor about it. However one told me that I was in danger of hurting myself and should call 911 or go to an emergency room immediately... I think it is from the question along the lines of "do you ever feel you would be better off dead or think about hurting yourself?". I answered sometimes... In truth I usually use that as a guideline to how bad I am depressed... The better the idea of suicide and/or just plain disappearing from existance sounds, the more depressed I am. Right now I am not really that bad... But even at my worst, it was still just thoughts and I wasn't really making plans...
So in any case, yeah, I think that the one definitely is overdiagnosing... I imagine if I were to discuss that with them, they would offer the "liability" excuse... Something to the effect of "if we didn't make that recomendation and someone ended up hurting themselves they may try to hold us liable".
Anyway... If you are cutting on yourself you are probably in need of some assistance. I've never really harmed myself out of depression... Anger on the other hand... Punching solid objects out of anger does you no favors... Lets leave it at that... That was many years ago anyway.