Dicker has written
No, actually Linus has even directly stated in his biography that without that direct threat of a lawsuit, Linux would still not be trademarked. Transferring the trademark to Linus was just recommended by his lawyer, because the chances of winning the lawsuit were better compared to Linus trying to void the trademark, what he actually intended to do.
Linus is fine with anyone charging for Linux or using its name. That is actually the whole sense of the GPL! (contrary to BSD license for example)
But still he needs to hold the trademark to protect himself of having sued the hell out of him, and not to protect some of his users from royalties.
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My post still holds right, be careful what you declare as "Incorrect".
I never said that your post was completely incorrect either, you just said that trademarks were useless without any financial reasons, which is a small portion which I wanted to clarify.