No idea, I’m merely a sheep.
But, I believe it’s come across from forums such as Reddit that aren’t so bass specific. I’ve read plenty of random threads where people have asked this about a pickup combination or amp etc…
The Basschat equivalent surely would be ‘what’s the weight?’
Anyway, back to the thread at hand… very cool! Naive as I am, I think after googling it, it’s some of the first pictures I’ve ever seen of bootsy not actually looking like ‘Bootsy’