From PayPal's policy update:
SECTION 13.3 Ineligible Items
We’re updating the list of items that are not eligible for Purchase Protection. The new items that will not be eligible are:
Payments on crowdfunding platforms (emphasis mine)
Anything purchased from or an amount paid to a government agency
Gambling, gaming and/or any other activity with an entry fee and a prize
We’re also clarifying the exclusion for items equivalent to cash to now include stored value items such as gift cards and pre-paid cards.
When further asked about the change in policy, PayPal said, "In Australia, Brazil, Canada, Japan, United States and certain other countries, we have excluded payments made to crowdfunding campaigns from our buyer protection programs. This is consistent with the risks and uncertainties involved in contributing to crowdfunding campaigns, which do not guarantee a return for the investment made in these types of campaigns. We work with our crowdfunding platform partners to encourage fundraisers to communicate the risks involved in investing in their campaign to donors."
How will this change your personal crowdfunding policy towards what you will and won't back?