That photo has been in circulation for years. During USAir's second bankruptcy, mesa was seriously looking into taking over USAir 73 flying out of PIT. Mesa alpa refused JO's proposed 737 payscale (RJ + 10%) and that was the end of it. JO wouldn't do the deal without locking in RJ rates for the 73's.
Personally I have never actually seen a guppy-killer sticker. Are they for real?