Meanwhile, on United's website in the "good" old days 10 years ago:
The Mileage Plus Program is maintained for the benefit and participation of individual members only. Only individuals are eligible for Mileage Plus membership, and each member may maintain only one account. Duplicate accounts will be subject to cancellation. Only the member named on the account will be entitled access to personal account information.
https://web.archive.org/web/20040615...2,1155,00.html
Figured this was worth pointing out for those complaining above about UA's "new" rules.