From The Sporkbox Blog, a review of the dangers of software evangelism and how it applies to the current situation with systemd adoption, with some devel mailing list quotes.
In May 2011 Lennart Poettering proposed systemd as a dependency for further releases of GNOME. As systemd is available only on Linux, the proposal led to the discussion of possibly dropping support for other platforms in future GNOME releases. While some people responded to the proposal with criticism others suggested the idea of a GNOME Operating System on top of the Linux kernel.
Basically this comes down to: Are Linux users going to allow corporations to take over their OS and change it in unfriendly ways? Because that’s what’s happening.
One of my concerns on this is how poorly these developers maintain these projects. I just came across an easily reproduced GTK3 bug affecting SpaceFM which was reported almost a year ago – with no response yet. That’s one thing you can look forward to when these corporate developers control everything: Microsoft-quality responsiveness and attention to detail.