added up the matches played and with an estimate of 3min/match, that one scholar had put in 100 hours of game time, in what was it ? 7 or 8 days ?

That is crazy. I assume that there is something going on there.

I have also noticed that when playing many of the scholar accounts, even when the choice is pretty obvious, the count goes down to almost zero very often. It doesn't make sense if these players play so often and are so good, to need all the time to make the selection. It makes me wonder what they are doing or using in the background.

I don't earn that much glint, because my win rate sucks in comparison to the rest at the top :D