Interesting! I've only ever actively used subdomains of webampskins.org, however during early testing I set a hard coded IPV4 IP as the A name for the root domain. Now it looks like that IP has been handed off to someone else who is hosting a spammy site.
Thanks for flagging, I removed that A name record.
Author of the Museum here. Agreed! That was true for "classic" Winamp skins which are what is shown here. I also took a stab at "modern" Winamp skins which were fully dynamic and scriptable and wasn't quite able to bring that to the browser. I did a writeup of that work here: https://jordaneldredge.com/webamp-modern/
His goal was to get a faster oracle that encoded the behavior of Pokemon that he could use for a different training project. So this project provides that without needing to be maintainable or understandable itself.
Former classical singer here. Only theory I can come up with is that opera tends to have large casts where all the singers are credited individually which would inflate the absolute numbers of "artists" relative to other generes. I still struggle to imagine this accounting for bringing such a niche genera to the top here.
I recall hearing that SQLite actually had some significant issues with choosing public domain as their license and somewhat regret the decision. Apparently it’s not a concept which has broad understating internationally, and there’s less legal precedent in a software context which has made it harder for some teams to adopt due to concerns from legal departments.