That might be amusing, but having my IP address shared with third parties or knowing which jurisdiction the service operates under are serious matters for a lot of users.
Especially the type of users a service like Mailinator attracts.
Oh yeah, definitely don't trust them for anything sensitive at all. From their old FAQ:
> Q: So if the government issued a subpeona to Mailinator to divulge emails or logs, you'd rat me out?
> A: Holy crap, yes. I'm not going to jail for you, I have a boyish face and very (very) supple skin.
> At this point, Mailinator cooperates with law enforcement when reasonable to do so and at this point has received friendly subpeonas, emails, or calls from the FBI, IRS, Justice department, LAPD, and Scotland Yard.
Better to use a service that explicitly says this, rather than burying it on p47 in obscure legalese. If you want more privacy, use a different service.
Especially the type of users a service like Mailinator attracts.