In other words, terrible headline on this post. I imagine Arch and Gentoo are the most likely to be affected, as they tend to run bleeding edge projects. Most Linux users are unaffected.

My machine runs Gentoo and it's not affected -- because it runs an older version of Xorg.

Just because the bleeding edge version of Xorg is available on Gentoo doesn't mean you're forced to use it. You can always decide not to upgrade and stay with an old version of anything.

On the other hand, if you stay with old versions too long, things might break when you finally do try to upgrade.