I'm guessing they didn't run "knob" past anyone from the UK.
Edit: as much as it pains me, this is hacker news, so, knob means cock in the UK.
It also, and I would say more commonly, means a round thing that can be turned. I've never heard of anyone avoiding the term.
sure it's not pronounced Kenobi?
they stylize it k•no•b or k•no•b1 take your pick