Keep in mind that this setting hides forum's "Merit: NNNN", so it probably makes sense to use it only together with the "Show earned merits" setting, otherwise you would just not see any merits in user info.
Correct, I have already skipped that ''Hide user's "airdropped" merits: setting. In the future, if I try I will follow your suggestions here.
btw custom themes are also beautiful. I am looking for more cool themes that bring the forum main structure also will protect our eyes much.