Found a couple of explanations here, so just forwarding the quotes:
...
None of that addressed
my questions.
A lack of response to some technical questions raised a few pages back seems to be tanking confidence in DRK...
And what question might that be?
Several points, which I disagree with, relating to darksend integration and anonymity protections.
I'm satisfied from my own research, but I didn't see any response to the questions raised...
Correct. Astute.
Zerocoin is around the corner, which doesn't suffer from the issue of being able to track amounts using coinjoin which is what Darkcoin is using. So that already means there is going to be a superior anonymous coin out there.
It also doesn't suffer from the issue of having to have 2 or more transactions occur at the same time for a darksend transaction to go through(otherwise there will be delays).
Zerocoin doesn't provide IP anonymity either.
Also subject to timing and pattern analysis.
Can be honeypotted too, etc..