MOVING TO FRONT FROM SEPTEMBER 12--SEE UPDATE
See here. It seems quite understandable that revenue is needed, but I wonder what philosophers think of this model? Given that PI has been quite successful and also quite selective, I imagine some philosophers will be deterred from submitting. Might a smaller submission fee and then a higher publication fee upon acceptance work better? Thoughts from readers? Signed comments preferred.
UPDATE: Professor Velleman comments below that they have decided to change the policy; he writes:
I hope that those who submit to PI will donate proportional to their means, which may mean $1 for some, and more than $20 for others. This strikes me, at least, as a very sensible and fair proposal, and it's now up to the philosophical community to make it work.
Thank you all for your comments. In response to the concerns expressed here, we have changed our proposed policy. Our submissions page now asks for a donation, with a suggested amount of $20.00. Authors can replace the suggested amount with any amount of $1.00 or more.
We are grateful for everyone's help in fashioning a workable model for funding.