You all know the sordid history here:
SkitB: Failed. hundreds of thousands of $$$$ unaccounted for.
Jpop: Failed. Million+ $$$$ potentially pissed away.
JJP/Bumper: 79 Aussies screwed by a rogue distro, only as fraction made whole. (btw, kudos to JJP for doing so)
DP: Philgate, etc.
Did I miss any?
All these are either directly or indirectly a result of paying for stuff (either fully or substantially) that didn't exist.
Are we done yet?
Add in other potential issues (looming JJP lawsuit.. NOTE- still just allegations, but serious nonetheless) and it seems like the pinball community might have had its fill of this crowdfunding model.