Most likely because Sony wouldn't have any recourse to take action (e.g.: ban) any players that are violating terms of use that PSN players are required to agree to (obvious examples would be harassment / offensive language that most services will minimally voice/chat ban for).
Most likely because Sony wouldn't have any recourse to take action (e.g.: ban) any players that are violating terms of use that PSN players are required to agree to (obvious examples would be harassment / offensive language that most services will minimally voice/chat ban for).