Long time ago, clue scrolls were released and took some time to test it by myself. Here's what I make of clue scrolls, at the moment:
Easy clue scrolls are now so underrated unless you're Iron-man and in need of those dragon items quickly but, then again, since dragons drop table also received some buff, not so long ago, so dragons overall give you more profit then looking for something valuable. I suppose this needs to be buffed or at least made one/two unique loots from those easy tier clues, hell, I wouldn't mind giving at 0.5% of chance of receiving random shard piece (1 - 3). Still better profit for new players than dragons. Supplies for teleport tablets, potions, anything that can be utilized for those who seem fit.
Medium clues alongside with other tier clues seem to be okay but adding shards to mediums won't break economy up, at adequate rate of receiving them.
For Hard and Elite clue scrolls, a bit of skill requirement wouldn't hurt and could be counted same way as does daily task system. Not sure if implementing this would take more time than it sounds but this would definitely put clue solvers to level up those skills, after all, if they want to complete some of the steps. In other words, skill requirements could make them more lively and more active. Not just only, Elites but Hard ones as well.
As usual, healthy feedback with toxic-free replies are always welcomed.
Have a good day!