The most annoying thing is that from a 'business' point of view the Sun has really played this well.
It's print circulation has been decreasing for ages but it isn't gaining many new online subscribers. So it quietly puts bikinis on page 3 for a few days, it's journos dop some subtle hints to their colleagues at their sister paper and bingo - coverage on every media outlet all of whom mention that while there won't be boobs in the paper you can still see them online. They leave the bikinis on for a few days to give their loyal pervs time to subscribe online.
Then, the boobs go back in the paper simultaneously ensuring they don't lose any pervy readers and giving a big two fingers to the #nomorepage3 campaign.
They are bastards, but very clever ones. So angry.