Possible Clues:

• Richest person in the world before Bezos
• They often open at the starting point
• Frequent swingers?
• Recent Microsoft retiree
• Gets a way through them
• The diva gets through them and wanders from the point
• Doors
• Where they 24 across for stones after A
• ... one who made his money from PC World openings
• Hinged barriers serving as entrances