It's sad to see Funtoo go, especially with so little of an explanation. I used it for a while, it was quite interesting! Without knowing too much about Gentoo it clearly had influence from there, you compiled your software locally almost always, safe some binary packages for the browser (optional, but they'd take too long). A good system to apply patches, fitting for the suckless terminal for example. And a powerful set of tools to manage the system.

It then worked as a very configurable, but stable distribution. Mostly current packages, just despite the rolling release model not necessarily bleeding edge, which is a good compromise. And Funtoo kept out systemd, which was great. Even if you like systemd you might respect the thought that monocultures are not a good thing, alternative efforts always need to exist and should be fostered. Like Funtoo.

Flaws for me were the slowness of the package manager when calculating dependencies and that compiling everything is in the end just an unreasonable effort, especially on aging hardware.