Bug report: infinite loop and memory explosion

Hi, not sure if this is the place to report bugs (if not, direct me to the right one please).
NameQuick stopped responding and cased other apps to Pause because it used over 600GB. I traced it to a memory leak (Physical footprint: 622.3G). See lines 24-45 in attached process sample and lines 383-422 in diagnostic log. Hope this is helpful.