It has, but hasn't. 'trex has been slowly enforcing KYC policies in order to prepare for fiat trading. The problem is that it effects people that either refuse to verify or have OCR issues with their IDs and the automated system; most of those with OCR issues need to file a support ticket and wait for staff to manually verify information, which is a slower process than the patience level of people who ignore notices and focus on speculation and random blog posts. There have, quite literally, been thousands of people effected by this issue and although many of them recognize that fact, few are willing to patiently wait their turn in line behind the thousands that they know of (the "I want it now" syndrome).