UTC dont have these problems:
MINTPAL V2 – POLICIES ON ADDITION, REMOVAL, VERIFIED MARKETS AND ICO ESCROWS.
"Path to Removal
The following are paths to removal.
Coin has less than 0.2 BTC volume per week, for a period of 4 weeks.
Coin abandoned by developers, with no new developers stepping up to take over. Essentially, if a coin dies.
Request by the developers, where backed by majority sentiment within the coin community. If not backed by the community, we will not act on this request.
In the event that any of the above occur, a 10 day removal notice will be publicized. The markets will be suspended at this time, and no more deposits will be processed. Withdrawals will continue to be processed for a period of 60 days once removed."
mintal are de-listing UTC when their new V2 goes live