In this morning's "The Daily DX" it was reported that ZL8AC has been on the air but is a PIRATE. The report notes, according to New Zealand's Radio Spectrum Management the callsign has not been issued.
I note this because I see spots coming in today for this callsign.
If you actually hear ZL8AC and work this station, just do so considering the above and WFWL.......for you new to DX'ing kids that means "Work First, Worry Later" ! :-)))
73 Joel W5ZN