capri0mni already explained it pretty well; there's more details, like how they didn't actually announce it themselves, but let a beta-tester announce it for them—and how she was pelted with misdirected abuse for daring to even think about trying the idea. Not Tumblr's best move, setting someone else up to take the fall.
There was a prior logoff protest a couple months ago, shortly after Post+ was announced, and a lot of people participated. After that, Tumblr staff removed the language that directly suggested that Tumblr users could and should try to make a profit off of their Destiel fanfic, but didn't add any language to say that their users shouldn't try to profit off of fanworks, and the thing where Tumblr staff won't be supporting any creators who get their butts sued is still in there.
IIRC, the goal of this longer logoff is to get Tumblr to remove Post+ entirely, but as I stated above, I don't find it very likely. In addition to the sunk cost fallacy stuff, Tumblr has got to be absolutely hemorrhaging money right now, making them still desperate to keep Post+, and with the most egregious bit of language taken care of (direct suggestion vs. indirect suggestion), I expect there will be fewer people logging off this time as well.
Some users have suggested alternatives to Post+, like buying little stickers to send to your friends, or little hats for your icon to wear, stuff like that, but again: Pretty sure sunk cost fallacy, as well as the fear that some of those same users will accuse them of stealing the idea and demand a cut of the profits, is going to keep Tumblr from going for that.
no subject
There was a prior logoff protest a couple months ago, shortly after Post+ was announced, and a lot of people participated. After that, Tumblr staff removed the language that directly suggested that Tumblr users could and should try to make a profit off of their Destiel fanfic, but didn't add any language to say that their users shouldn't try to profit off of fanworks, and the thing where Tumblr staff won't be supporting any creators who get their butts sued is still in there.
IIRC, the goal of this longer logoff is to get Tumblr to remove Post+ entirely, but as I stated above, I don't find it very likely. In addition to the sunk cost fallacy stuff, Tumblr has got to be absolutely hemorrhaging money right now, making them still desperate to keep Post+, and with the most egregious bit of language taken care of (direct suggestion vs. indirect suggestion), I expect there will be fewer people logging off this time as well.
Some users have suggested alternatives to Post+, like buying little stickers to send to your friends, or little hats for your icon to wear, stuff like that, but again: Pretty sure sunk cost fallacy, as well as the fear that some of those same users will accuse them of stealing the idea and demand a cut of the profits, is going to keep Tumblr from going for that.