GPLv3 Appropriate Legal Notices and Restrictive Trademark Grants

[Russ Nelson]

Daniel Chalef writes:
 > It is my understanding that restricting the use of the trademarks (for
 > commercial use, "destroying brand value" etc), in turn creates additional
 > restrictions on the use of the software and source code, which would be in
 > violation of the GPLv3.
 > 
 > Am I correct or somewhat misguided? :-)

Misguided.  It's reasonable (and both the GPLv2 and GPLv3 require it)
to expect people to be told that they are running a modified version
of your software.  Not granting a trademark license, or granting it
only under certain conditions, is just another way of making sure that
people comply with the GPL.

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