I just saw a question tagged whmcpanel for cPanel's WebHost Manager (WHM). I vote that whmcpanel (with 75 questions) be retagged whm (which has 239 questions)
Arguably both could be merged into cpanel but cpanel questions could be from users who don't have access to WHM, so I don't think that's a good plan. But whmcpanel and whm are redundant.