Gentlemen, you all have good arguments. Everything is possible. It is possible that some players in this alliance spend a lot of money and it is also possible that they take advantage of exploits.
I have a vast collection of images saved from the bases of this alliance with 3 special buildings that NEVER disappear or are replaced without a break. I also have a vast collection of Attacks performed by them with 2 or 3 Khan's, 4 or 5 Eisenhower, 4 or 5 Tupolev, etc, etc, etc. Everything has already been shared with CS long ago. From the denunciation made, of 11 bases of the same alliance, the only thing they found wrong was the construction of a double "property". Sounds like a joke, but that was it.
Maybe they're playing fair? Can be! I just don't believe it.