Yeah, yeah... those darn smites. Have been getting smitten myself... Just let it go is the best thing, if we found out exactly who was smiting us, there would be much chaos, though no one would smite anyone in fear of being smitten. o.O
Anyway, some people do it because of a grudge in the game, or of a misconception... In fact, it isn't that hard to find out who has been smiting you, as I already know who has been smiting me recently, and he's already deep in smites.
It all works out.