Hmmm let me think a little....
I got bug and get 40k diamonds
I spent diamonds for Heroes and stones
In mail with diamond reason for this gift was "we change price of diamond, so if u was so nice to pay more, we give u back some diamonds" - No strange bug at all
Ok next step - I keep about 12k diamonds for draw and so on
I was about 6-7 in my server's ladder
ROLLBACK
I lost everything I get, also stone BOUGHT FROM ARENA POINTS AND CRUSADE POINTS, and get back 5k Diamonds.
OK, i can deal with it
But .... wonderful surprise ... who used diamonds for stamina boost (40k diamonds.... in stamina means something like 5 levels or more at lvl 48+), can keep their level and...... wonderful surprise 2 ... they get also the 5k diamonds...
So if I've used diamonds normally, I get a rollback and suck but If I Used them for LVL up.... I get no rollback and a prize too!!!
Now I'm around 30th in ladder and have no way to reach top player .... oh yeah, I can!!!! Just buy 400 € of diamonds
If u make shit, clear it all and rollback server at a fix time with no bug...
In this way u killed the server.