In a FOWLR tank this tip isn't that big of a deal, but in a coral tank, you have to be VERY careful cleaning salt creep as you don't want to knock any salt back into the tank and have it fall on corals, it will severely hurt or possibly kill corals.
I try to minimize what causes it to get on places I am sick of cleaning often. Bubbles popping is the cause for my past messes. So getting rid of that source reduced the amount i saw gather on the skimmer.
Every situation is differ. I met someone who had airstones in his display... Fowlr tank... He had creep on his glass all the time...glass canopy...