Churnability of AMEX Signup Bonuses
Thing is, USPS dropped off a targeted offer for 75,000 MR points on $5000 spend in 3 months for AMEX Business Gold, 1st year's annual fee waived. I've had other offers for 50,000 points on $5000 spend, so this is 25,000 points sweeter. However, I had a Business Gold in 2013 (since closed, obviously).
I've looked through all the documentation and cannot find any "one offer per lifetime" verbiage that you tend to find on other AMEX products.