Certainly I don't want to make this an ad-hominem based strictly on the domain name. I'm basing this off content he has written elsewhere in the Mailing List thread. Such as:
https://lkml.org/lkml/2018/9/24/1497
"You must respect women who do NOTHING for you and even NOTHING for
anyone else except exist as a USELESS physical entity (females who are
not sweet young brides for men or mothers and just consume are not
useful for anyone other than themselves: the purpose of females is to
create more human beings and to bring happiness and pleasures to men:
they are superfluous in any other capacity, as a class)...
who rules over you ...
or else you are punished.
You slaved away writing the code.
When they feel they don't need you anymore they seek to tear you down.
You have a remedy: Recind the grant.
You did NOT sign away your OWNERSHIP of the code you wrote.
The anglo-american belief system is that males are to be slaves of women
and their masters.
This belief system is now being imposed on even hobbies like gratis
software development.
They wish to give men no refuge, no place to build something outside the
eye of the middle-class ("white" or english) woman.
To keep men checked and obedient at all time in all things."
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Now in hindsight, maybe the use of the term "anglo-american" should suggest that the author is not, himself, American, and so perhaps alt-right would not be the best term.