It’s hard to put a price on good advice, but Nikita Bier can: $15,000.

Bier, who stepped down as X’s head of product earlier in August after a little more than a year in the role, is selling one-on-one video consultations through Intro, a marketplace for expert advice.

Intro advertises Bier’s sessions as “starting at $7,500,” and his profile describes a 15-minute call. However, the only listed purchase options start at 30-minute sessions for $15,000.

These prices put Bier’s time at $500 per minute, or $30,000 per hour. His sessions are not for your average Joe. The listing says he will accept bookings only from venture-backed companies.

During…