I wasn't really on MySpace either, but I think it's exactly where your complaint lies that drew such a huge demographic. When I think MySpace, I think teenagers who are still discovering their identity—not seasoned creators with a catalog of work to show off.

The masses were given a means to make a page that encapsulated their identity and connect it with others, during a time where it was suddenly made possible for everyone to express themselves, but still difficult to produce meaningful online content. I think Tumblr eventually ended up capturing a lot of that, but I also feel that there is a sense of pressure around having a space where the purpose is to publish content (even if just reblogging). It was really meaningful to a lot of people that they could have a simple space to express themselves through custom mouse cursors, cringey quotes, and autoplaying emo music.

Nowadays, this expression of identity for younger audiences seems to be driven by being a part of online communities with common interests, expressing oneself through content (now that it's so easy to make and share). But I think MySpace was there for people at the right time.