Hi Bitfinex, just read your entire forum thread. This took a long time (particularly the discussions about FRR!). Just wanted to say well done on running such a professional exchange, which has transitioned from a small project to become the largest BTC/USD exchange in the world. I have only been using your site for a short time, but so far I am very impressed. I do have a feature request for you.

Feature request: - optional increased security on withdrawals. When withdrawing I want to be asked for a google auth code AND an sms code AND email confirmation AND a secondary password used only for withdrawals. Some other exchanges already do this, including your main Chinese competitor. This feature will reduce account hackings and increase people's trust in your exchange. I recommend making the increased security features optional, so that people who are happy with the current security measures can continue unaffected.