Everyone paraded bitfinex as EMs big contribution, but its funny to consider that they were using darkcoil(by vertoe) before litemode was added (which is basically darkcoil).
I don't know where you get your "insider" info, but it's totally wrong.
Even if, before darkcoil, they were using the regular good 'ol daemon.
Bitfinex added Darkcoin on June the 2nd 2014, when Darkcoin was still a branch of litecoin. Darkcoil was announced 20'th november.
So unless I'm proven wrong, this is FUD.