Mike Hearn said:

“The fact I use bitcoin isn’t a secret, but I don’t want all my transactions in an NSA database. When I use bitcoin in a bar, I don’t want someone on the local network to learn my balance. The way bitcoin is used today, both those things are possible.”

Thanks to IP tracking, it’s “possible that the NSA and GCHQ have de-anonymized most of the block chain by now,” he added.

http://www.coindesk.com/beyond-new-york-lies-ahead-bitcoin/

So, pays your money and takes your choices.

You can buy Darkcoin now while its cheap, or you can wait until its worth $350 / coin.
 
Either way, you're a buyer. You can't fight fate, or the NSA/GCHQ - they literally have your number.