i got about 150 gold from sludin hack. i use it to buy a necklace and 2 seal. maybe your luck was "very" bad.
i think the chance of getting gold is about 65%, coin X about 30%, and token reward about 5%. i got token reward once, i get paper ring from it, but the ring was gone (because my ninja bug maybe).
so, do not EVER say bad thing to HACK-MAKER. cz i appreciate their brain.