Their post about catching the HIT seemed to happen a minute or 2 after I subbed mine. There is a small chance that it auto-posts another instance of the HIT whenever one has been submitted.
I've definitely noticed this sort of phenomenon for other HITs, especially ones with really long timers. I'll finish the HIT, and within a minute after I finish it, it will pop-up on Hit Finder.
Doesn't happen consistently, but I've noticed it happen several times, especially on the weekend (I assume fewer people online means fewer PANDAs running for it, which allows me to see it pop up on HIT Finder).
That being said, I turned off my Rhys PANDA for good yesterday and ended up making $120 anyway on other HITs, so the Gods of Turk seemed to have smiled upon me for my faith and courage.