It's classic tragedy of the commons - most of ultimateguitar and other sites have just scraped 'content' off the good old spirit of the early web all the way back to newsgroups then put a paywall and ads all over it.

still beats pre internet though when you'd buy an expensive book of sheet music with first position camp fire chord diagrams and a piano arrangement written out by someone who appeared to have little feel for the actual recorded music.

Without inversions, suspended chords, added base notes etc most chord naming isn't much use, tabbed out diagrams for guitar and keyboard are really helpful along with all the wonderful youtube content from jamesjames, late night lessons etc