Yes, even with my short-term exposure to the scene I can detect the varying ranks of those who really are effectively just piggybacking on other people's song releases (showing a film of their own faces while playing the music, then announcing 'that was really good' at the end), those who are providing entertainment via bodily ecstasies (at what point did ovaries take over from hearts as the metaphorical seat of the female emotions?), and those who are able to spot and analyse the technical background details.

Although I'm not sure the 'never heard this before' convention for this format does the latter class any favours; when you're doing an in-depth commentary, you'd normally be allowed/expected to study the subject matter repeatedly and at length, rather than being required to spot the fine detail on the first-ever encounter :-(