To be honest, it's right around a line that I feel is fine to make this request.
The thing that triggered this, that isn't really mentioned by me in the post, is that we've had a few sudden swells of donations around both the 10.9.0 release and the latest 2 Plex kerfuffles, and I get the very distinct impression that people donating are not reading all the "fine print" about what we use it for.
We also have a lot of recurring donations which should pay for a huge chunk. The goal here is to basically just make another public "hey, we never really asked for donations, and we appreciate it, but hey for now we'd rather you donate to individuals than the org since the org can coast on this money for a few more years". Which we absolutely can. I can't envision any real situation that would require us to use a huge sum of this money in one go, so it's really just the monthly recurring costs to cover which are relatively stable and consistent.
I was expecting a much bigger number than 40 months, but then again for an entirely donation supported project it's quite good. I don't think I can remember a project telling people to stop donating directly to them before, though. It's a little odd really. I get it, but seems like investing in the S&P500 and then withdrawing your money the moment you get the slightest gainz.