I personally don't use Photobucket (Imgur ftw) but I suspect we have a large quantity of members here who have been using Photobucket since the dawn of it's existence and even some listed in the forum posts here.
For members affected, what was your solution? Did you cough up the $400USD/year or do you have a recommendations on an alternative (or a way to mass migrate and join the cool kids at Imgur)?
Simon Dell mentioned Imgur as a free alternative in the article as well but would be great to see how Warriors are fighting back at Photobucket.
I think it's a bit of a running joke to monetise without users knowing, but this is a pretty extreme move that will either ramp up revenue or give means to a cause of being beaten with the proverbial stick of the internet.
Message wise, they could have made this a little less... ransomware-like?