But consider that there is Stubhub and there is the shell company intermediary. Now Stubhub recognizes $1 from the buyer and $1 from the seller for the first transaction, and again $1 from the buyer and $1 from the seller for the second transaction.

This smells like an accounting trick to boost published revenue numbers, and seems plausible given that Stubhub announced they were on IPO track last year.

Yeah the other commenter got it, but just to be explicit:

Case A:

Sale 1. Ticket holder sells to [shell company]: +$1 for Stubhub

Sale 2. [shell company] sells to ticket purchaser: +$1 for Stubhub

Case B:

Sale 1. Ticket holder sells to ticket purchaser: +$1 for Stubhub

It doesn't matter who the buyer or seller is, Stubhub says "This is a ticket sale so I will take a cut". Case A makes twice as much money for the parent company, and that's what's under suspicion in this thread, although there are other realistic reasons for the domain name behaviour seen by OP. And Case A makes assumptions about ticket pricing, e.g. if the shell company bought too many tickets and couldn't re-sell them all then whoops