In recent years, I have been visiting LV 3 to 5 times a year. I'll play a lot of BJ at low levels (10-20) and I'll play a little VP if I have a coupon or promo. Most of my play has been at the Boyd properties (Fremont, Cal, Sam's Town, Gold Coast, Orleans) and Terrible's. We have stayed at all of those at least once (although we probably stay (but don't gamble) at the Golden Nugget more frequently than all the others combined). My Boyd card is the lowest level (red) and I think I've earned 5000 slot points total, mostly through promotions, very little actual play.
OK, with that background... I've started getting offers from the individual Boyd properties.
Orleans: 2 weeknights free in December, or weekend nights @$25, offer code QR112GF - OR - buy 1 weeknight, get 1 free for 2 or 4 nights total in Jan, Feb, or March, offer code QR201GF.
Fremont: 3 nights free (including weekends) Jan 16 thru March 7, offer code E0112XA.
Any idea what these codes mean? I can't imagine that I "earned" these.