Citi has changed the eligibility language on the Citi Strata cards.They used to say (emphasis ours):
This offer may not be available if you leave this page.Offers may vary and this offer may not be available in other places where the card is offered.Bonus ThankYou® Points are not available if you received a new account bonus for a Citi Premier® or Citi Strata Premier® account in the past 48 months or if you converted another Citi credit card account on which you earned a new account bonus in the last 48 months into a Citi Premier® or Citi Strata Premier® account.
The language now states (emphasis ours):
New account bonus offer is not available if you currently have or previously had a Citi Strata Premier® or a Citi Premier® account. You also may not be eligible for the new account bonus offer based on a number of factors, such as your history of opening, closing and using credit cards.
From what I can tell this only applies to the Citi Strata lineup of cards currently, for example Citi American Airlines cards still state:
New account bonus is not available if you have received a new account bonus for a Citi® / AAdvantage® Platinum Select® account in the past 48 months or if you converted another Citi credit card account on which you earned a new account bonus in the last 48 months into a Citi® / AAdvantage® Platinum Select® account.
Looks like Citi is moving to a once per lifetime rule on the Strata cards, rather than once every 48 months.
The questions then become:
Hat tip to reader Raymond