Ross Ulbricht may get some jail time, but it shouldn't be 30 years.  Maybe a year or two.

Yes, he created Silk Road, but he never possessed any of the drugs for sale on it (probably), and he didn't buy the drugs (again, probably).  He merely facilitated a way for others to buy and sell drugs and made some nice coin on the side from sales commissions.

Those people would have bought and sold their drugs one way or another even if Silk Road never existed.  So putting Ulbricht in jail does not serve justice or help anyone.   Aside from making a website that specialized in drug sales, he didn't actually do anything wrong.