The simple answer is that a lot of his earlier students have also done very well as Internet marketers and have big e-mail lists them selves, so when mailing list Frank started to promote to his list his students did the same as affiliates. They didn't just mailing list copy and paste his e-mail but they added their own testimony to their e-mail lists. I know this because I am on a few of his earlier students list as well.
And the main reason why people like Frank do well launch after launch is that they have a lot of satisfied customers that trust them when mailing list they launch a new product and think they will benefit from it. The money is in your list! How many times mailing list have you heard that? Many times and there is a great deal of truth in it but not the whole. If so the spammers would be the most successful marketers and they aren't.
However, if you are an affiliate marketer and do not build your list, you are leaving a lot of money on the table. First of all you just have mailing list one shot to sell to them, and if they don't buy they are gone forever. If you do build your list then mailing list you can promote the same product several times, and them shift to another product within the same nice. You are building an asset no one can take away from you.