a function like hints is allready in RoboMX's trivia pluggin (I might be mistaking but i have a feeling you have seen this in action in one of my old rooms)
it requires no hint writing at all and gives the hint at half of the "thinkperiod"
Keep in mind that metis and this RMX trivia pluggin do not like eachother so it needs to be in a version whitout metis added
I am quite sure it is in the archive here if you want to try it Gypsy
Greetings, .. Joshua203