I was a bit exaggerating, sorry for that. But you still didn't answer my question why he would even lie about this?
BitFinex is a serious exchange they added DRK/LTC for one reason alone, strong development support.
The main reason is not "development support" it is simply that they are Bitcoin clones and it takes little to no effort to add another Bitcoin clone to an exchange that already supports 1 or especially 2.
For an exchange to add Monero they have to not only be motivated to do it but also be willing to invest in actual development of their own systems to support it.
I'd bet that BFX started accepting DRK after possibly some underhanded negotiation convinced BFX that accepting DRK would posture BFX as the leading premier exchange of the fancy newfangled anonymous coin of the future, supported by certain DRK whales' (ahem, Otoh) assurances to make the market.
It may be prudent for someone to eloquently notify them that this is not the case, and the only public decentralized cryptocurrency protocol that has proven anonymity is CryptoNote. Also, that the structuring of DRK's coin distribution is too reminiscent of a pyramid scheme. They could save their amazing exchange a lot of face...
With the precedence set by the SEC of Pakistan...
http://siliconangle.com/blog/2015/04/05/leocoin-yet-another-bitcoin-alt-with-links-to-ponzi-schemes/
...it is all the more likely that the rather conspicuous signs of rats fleeing the sinking ship that is DRK suggest that they too realize such a risk is presented by the instamine + masternode reward scheme:
https://bitcointalksearch.org/topic/dash-aka-darkcoin-victim-resources-999084