took 56 spins to get this feature, 2.25x, had base wins that paid more than this

at most sites that I played at once you finish wagering it will remove any excess 

1000x fish on my first (and as of writing, only) spin on Big Bass Vegas 1000: No deposit bonus, btw (I only got $0.80 from the casino free spins, and the cashout limit is 10x the bonus, so not even worth a withdrawal). Now the question is, do they let you play down the money or does the excess vanish once wagering is completed?   Anyone know?

Hmmm...that may mean "keep away from this casino!" 😜

yes but they have removed that complaint and also @Askgambers-complaint have removed dafabet casino option in complaint section.