Maybe it is HN bias, but all past popular Kickstarter launches seem to be products that would now be prohibited. I think Kickstarter is writing their own fate by not allowing these things. All the new popular launches are going to go off-site.
Watching Kickstarter and the various multi-million dollar projects, the liability question was getting more and more important. And even when you've tried to be very up front where the liability is, that doesn't stop angry people from suing you. And that, is not a fun way to live.
So Kickstarter gets more and more explicit in their liability language and rules and that shuts down folks who might otherwise have participated. So I don't know if its 'fate' so much as a hard way to do a business.