[Flimm]

It doesn't matter, trademark law requires you to pro-actively prosecute violators if you want to keep your trademark.

Although I still wish Canonical was more transparent about who gets to use its trademarks and who doesn't: https://bugs.launchpad.net/ubuntu-community/+bug/394328

sp332: You're right, although it's not clear to me that this definitely is not a violation. I hope it isn't for the sake of free speech.

[sp332]

It doesn't require you to threaten people who don't violate your trademark, but they did anyway.

[NateDad]

Show me where in their message there were any threats.

[sp332]

It was very polite, and props to them for that. But that doesn't mean there were no threats.

to use the Ubuntu trademarks and Ubuntu word in a domain name would require approval from Canonical... Unfortunately, in this instance we cannot give you permission to use Ubuntu trademarks...

This has a big "OR ELSE" implicit in it. Requiring means enforcing.

[tedunangst]

How fun. It doesn't require you to send requests to people who don't violate your trademark, but they did anyway.