I just received this from Bitfinex support team.

Thank you for bringing this coin to our attention. Several factors go into our decision-making process when considering adding a new coin to Bitfinex. Some of these factors include user requests, shareholder interest, market capitalization, coin design parameters, and a thorough assessment of the coin's development process; including, but not limited to, the team behind the coin and their strategies for solving technical and nontechnical problems.

We will continue to monitor these factors and make prudent decisions to keep our customers' best interests in mind.

Kind regards,

Stephen
Bitfinex Support Team
support@bitfinex.com