Sure, if you decide to stay anonymous all the time, Anonymity will work fine for you.
But why does it expose YOU when I keep using darkcoin without darksend.
This doesn't make sense.
to hide a signal you need a lot of noise.
if every beep is a signal there is no privacy.
so to build a working privacy-setup,
you need to make it obligatory.
only if noise and signal comes in the same stream
there will be obfuscation.
// if every transaction via darkSend is a transaction that is worth investigating - the fact that it is send via darksend becomes an information.
// if you
cant tell why it was via darksend (`
?was it becouse it was obligatory or did the sender/reciver needed the privacy?) the darksend transaction is not an information.
// by making it obligatory you
a) create more "false positives" and
b) create more darksend transactions overall -
// making the investigation a lot more hard work.