Brady Grumpelt is totally full of it, his whole bs story. It really looks like he stole the whole idea directly from https://bagofdicks.com. There’s no question. Brady’s DicksByMail site launched in 2015, BagOfDicks.com had a pre-product launch landing page sign up form in 2013. Described basically what Brady sells on his site.
I know the owner, and he would get tons of people emailing asking to buy it. Some were really passive aggressive and would yell at him for not wanting to sell it for $30 dollars.
Anyway, if you take a look at https://BagOfDicks.com now, it’s hillarious and the product is amazing.