hey, he paid for it! They gave him an unlimited ticket in exchange for euros.
You're free to say that the train company shouldn't have created an unlimited ticket but it's unfair to paint a person who uses what he legally bought as a thief.
While that is true (if you don't have a seat reservation) you are prohibited from occupying more than one seat per DB ToS.
"Each passenger is only allowed to occupy one seat [...] Passengers who behave contrary to the above regulations, ignore the instructions of employees or otherwise pose a threat to safety and order can be excluded from transport or further transport without entitlement to reimbursement of the fare and baggage price."
well I'm pretty sure if those seats were taken he'd sleep in its own seat. Perhaps his equation would change if had to sleep upright every night, but still, there is nothing illegal
hey, he paid for it! They gave him an unlimited ticket in exchange for euros.
You're free to say that the train company shouldn't have created an unlimited ticket but it's unfair to paint a person who uses what he legally bought as a thief.