[fChk]

(.....)

This value are your quality credits. They get added to the amount of normal credits at the end of the day and the counter resets to zero for the next day.


Correct me if I'm wrong. I used this explanation a few times so far and no one from staff has said anything or corrected me.

Thanks for that input @Hidden_Refuge. I appreciate it and It certainly explains the reset.

Now for the meaning. Assuming the explanation @Hidden_Refuge gave is correct, I would say that the credit system is designed to refrain people from spamming their way into the VPSes; the credit score being incremented daily instead of at every post, while the so-called 'quality credit' score is a mere temporary/daily post credit counter.

Hope I get it right.