The article discusses a reported issue where Facebook is blocking posts and links related to Linux, with some users claiming their accounts have been locked or limited for posting about Linux. The issue is attributed to Facebook's internal policy makers labeling Linux-related groups as cybersecurity threats, but this claim is not supported by evidence. The article also mentions that DistroWatch, a website that tracks Linux distributions, has been affected by the issue. The cause of the issue is unclear, with possible explanations including overzealous moderation or a buggy machine learning classifier.