[teraflop]

It's not quite that simple. Owning a trademark doesn't automatically give you the right to seize the corresponding domain names. ICANN has a dispute resolution policy that sets out rules for how such situations are handled: https://www.icann.org/resources/pages/policy-2012-02-25-en

Basically, if someone snaps up the x.org domain, and can make a case that they have any legitimate purpose for it other than impersonating or extorting money from the X.org organization, they get to keep it.

[djsumdog]

Nissan.com comes to mind