Very useful because the information is almost distribution agnostic as Arch will stick to upstream as much as possible; or at least that's my impression as Debian user reading their wiki.
Also: isn't the Arch wiki the new Gentoo wiki? Because that was the wiki early 2000s and, again, I've never used Gentoo!
> Also: isn't the Arch wiki the new Gentoo wiki? Because that was the wiki early 2000s and, again, I've never used Gentoo!
It is, didn't Gentoo suffer some sort of data loss which made it lose its popularity?
According to my experience, yes, it is. I have used Gentoo (using its wiki to install and configure), then after a few distro hops I was at Arch Linux and the wiki was a blessing and ever since I have found it (>10 years), I never needed anything else. Stuff they have on there applies specifically AND generally. Whereas Gentoo's wiki is usually specific IIRC.
Gentoo's wiki is still great (& Arch's has been great for a long time), but yes, Arch's is probably improving at a faster rate. Arch is also a little more comprehensive when it comes to mainstream tech that's divergent like init & network management - Gentoo's still good here but openrc & netifrc show their influence throughout.