Data point
Applied for Citi Plat Select AA World MC using targeted link travel5.citicards.com that I got in a mailing from AA.
Same terms though as in the links on the Wiki page - 50K miles after 3K spend in 3 months, 10% redeemed miles back, chip technology, etc.
Instant approval with $16.5K CL. Credit score 800+.
Had the same card previously which I cancelled in July 2012. No other Citi apps since then but 5 credit pulls in the last 6 months.
Thanks for all the info here.