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GNU/Linux Advertising is Grassroots, Not Paid Promotions

The sister site has mentioned that Linus Tech Tips (LTT) or its Linus hooked up with (or met up with) the most famous Linus.
It seems like the high-exposure endorsements and promotions of GNU/Linux are not just grassroots; they're increasingly effective. "It might be beneficial to follow up with how LTT and PewDiePie have done with their GNU/Linux experiences some time later this year," an associate has said.
There are several other such high-exposure endorsements and promotions of GNU/Linux, just to repeat the above framing. But no "celebrities" per se because they would require payment to do so and no single company would shell out millions of dollars for some "famous" person/s to pretend to like Free software. █