What is the logic behind your statements? following these ideas, activities such as extreme couponing and tax planning would be fraud .... I think you two are confusing Tilting the game field in your favour with scamming, I do buy advertising and I use threshold accounts as well, why should any of us NOT take advantage of the benefits these companies are offering?
That you two are trying to take the higher moral ground under the presumption that this is illegal is completely false, I would not even call it immoral since you can use one threshold account to test an idea/campaign and once you get some data expand it with your main account, what is wrong with that?