[
There's a pretty simple solution for all the potential buyers out there. If you don't like the terms/warranty, then don't buy it, simple as that. No one is holding a gun to the buyer's head to buy a product with only 90 days warranty.

If you would like a 1 year warranty, then I suggest senseless create a 3rd product on his website for $15,000 board with included 1 year warranty. There, buyer's have options now.

Easy as 1, 2, 3.