I don't see that running our own pastebin is valuable to the community. There are plenty of other options for people to post things (pastebin.com, GitHub gists, put a file in your web space on Fedora people, etc). I'm in favor of option 3, with a long enough timeline for the fpaste maintainers to handle the change and for the docs team to make sure we update any docs that refer to pase.fp.o accordingly (if any)