right, its just "the thing" because people liked it. they might also like the "b" - maybe more? honestly, the "call sats 'bitcoin'" crowd is powerful and influential (especially with Square now) so just practically an alternative proposal that is going to have a chance can't ignore their success and try to do something else entirely - it probably needs to be a kind of concilitory response to the ground they've already gained. hence the 'b'. "we get it, you're winning. will you compromise and at least just not use the uppercase 'B'? we can agree to that compromise". its like that.