I showed that if a crypto algo such as ECDSA was compromised it would cause more damage to DarkSend and DRK than it would to for example Shadow.
I'm no cryptography expert or part of any dev team so could you please explain that example I gave.
Firstly I am not cryptography expert or ever claimed to be.
Secondly I have already answered this ... if ECDSA is cracked all your DRK funds, private keys, transactions are mine.
If ECDSA is cracked then only SDC funds, private keys and SDC transactions are mine. SDT transactions i.e. all anonymous transactions are still 100% anonymous and secure.
Now tell me who has been hurt more as a currency?
But this is only part of the problem with DRK MN design; I am directly answering your question in relation to "cryptographically secured anonymous transactions are flawed"
Fact is a cracked crypto algo in the example I posted is far worse for DRK than it is for Shadow (as stated above you have to go through multiple layers).