As for removing hit sound, that is a NO.Feedback is a lot in video games. We can't really "feel" a hit and the medium of a screen is inferior to our reality and our eyes. The hit sound is a necessary evil unless we find something better to replace it. We won't be looking into it any time soon. Sorry.
We can try to experiment with hit sounds by removing them from aoes. We could also try to have a delayed combat log (like for streamers) but both are necessary for the game's well beings.However, we want spells/items to be able to keep track of players. We do not see scanning/scouting as a gameplay issue.If we remove combat log and hit sounds, then we will need to implement alternatives.So before we invest time in it, think about it: aside from immersion, is it a gameplay issue?
So focus on this question: Why is scouting bad in your opinion?