I think MSP is a great publisher, but it still functions more or less like a traditional publisher would. I believe their journals are reasonably priced, but th

I think MSP is a great publisher, but it still functions more or less like a traditional publisher would. I believe their journals are reasonably priced, but this initiative seems to present another step in that it is an attempt to completely abolish publishers. The argument in favor is that they do not add all that much of value, and the community would rather do without the copy-editing that the journals provide and instead have completely open access without any charges. Of course there are already open access journals, but sometimes you have to pay to publish there, and what may make this initiative different from the ones so far may simply be momentum: Perhaps this time it will indeed start a permanent transformation of the way mathematics is published. The current push, starting with the Elsevier boycott and "lead" by Gowers, seems to have support from a substantial part of the community.