running ccleaner daily hurt my system function?

Hi I was reading a post in other area about something else but they said careful w/ ccleaner usage it can foul up machine.

I wonder is running it daily on the basic setting to dump cookies temp files and flashplayer and such bad? (set on basic not advanced it hits browsers tmp files etc...) I dont use registry cleaner part often and if I do Im very careful to tick remove of only old removed programs.