You people just don't get the masterful quality of this scene. As Peter enters the mines, you hear the chanting assuming that the is simply a pirate song or working tune. When It becomes clear that the song is actually Nirvana's "Smells Like Teen Spirit", it shows fully that we have left the real world, constrained by time or logic, and truly entered Neverland.
The song choice references the children and pirates being essentially an unruly rabble, and the youth of many of them. When Blackbeard comes out, his lyrics "And I forget just why I taste" poetically reflect his jaded state after artificially extending his life using the fairy dust mined by the prisoners, but at the end he says "Oh well, whatever, never mind." suggesting that he gives up his introspection, and decides to just go along with it, punctuating this with an exuberant laugh. It suggests a man conflicted by his own greed, and his feeling that none of it matters anymore, but continuing to attempt to enjoy his position in spite of it all.
>"Oh well, whatever, never mind.
I think you're right about this meaning he has given up on introspection, but also that his mind has become part of neverland as the fairy dust has taken it's toll on his psyche. He has a Neverland mind. a Nevermind.
HELLO HELLO HELLO HOW LOW
>Stealing lines from Pirates of the Caribbean
Now that's not very nice.
>He has a Neverland mind. a Nevermind.
>You know now all these nevermind twats are forcing a meme made by this excuse of a man