You may have read recent reports that the U.S. Commodity Futures Trading Commission and Department of Justice have filed charges (announcements here and here) against the cryptocurrency exchange BitMEX and several people involved with the company. This includes Ben Delo, a major EA donor and a cofounder of BitMEX.
CEA, Effective Giving UK, and 80,000 Hours became aware of the charges yesterday, when the news was first reported. No findings have been made about these charges at this point. We will continue to watch how things unfold and learn more, and will continue to update the EA community.
Sorry, I mean my most recent comment specifically - the reasons we're considering these kinds of changes are not just because of this one situation but also because of others that could arise. I'll edit to clarify.