many small details that need to be known in order to overclock its not just a matter of reducing multiplier and then upping the fsb as im sure you'll know...ram timing dividers voltages and even gettin around the bios and finding all these options without messing everything up may not be the simplest of task for some of us..some of us may not even be willing to take the risk since it maybe the pc this person is buying is something he saved up for months and doesnt want to risk it all by making a mistake overclocking...
my point you shouldnt really encourage people to overclock if they arent 100% sure of what needs to be done and all the small bits and bobs that you need to know