Looks cool, nicely done! A bit ironic that you say "I'm never sure if I'm infringing copyrights or if I have to add confusing attributions to the artist or pla

Looks cool, nicely done! A bit ironic that you say "I'm never sure if I'm infringing copyrights or if I have to add confusing attributions to the artist or platform" and then the website you've created does nothing in order to clear this up. You say "free", but not under what terms or what "free" really means here. In fact, "free" is not even mentioned in any other place than the website <title/>. As a suggestion, add a specific license to all the work (a Create Commons one or similar) and write out the terms explicitly, even if they are just "Do whatever you want, no warranty included".