And here is Eastbay1K's original thread when the restriction was introduced:
https://www.flyertalk.com/forum/alas...ve-ticket.html
And from the t and c's:
- To access the Alaska Lounge, members and guests must present a valid membership card, same-day ticketed boarding pass on any carrier, and a government-issued photo ID. You may be asked to sign a roster with your name and Alaska Lounge account number upon entering affiliated lounges.
- When not traveling, members and guests may access an Alaska Lounge when an Alaska Lounge conference room has been reserved 24 hours in advance or during an Alaska Lounge-sponsored special event.