You know you want to read it when it is being censored

In another thread Bergs47 wrote:
"I had no problem defining erotic when I grew up. Where I lived there was strict censorship in force; these were both political or sexual. Every Friday a list of banned books was produced in the Government Gazette. The political books were obvious so the remainder were sexual. There was also a bit of blasphemy. So you immediately had a list of books you knew you had to read. "

And I gathered this happened a while ago.
Would it surprise anyone that this type of censorship is still going on? Not by government agencies but by publishers/book sellers/money transfer organisations?

Random background links:
http://www.teleread.com/ebooks/why-is-amazon-censoring-e-book-porn/
https://www.smashwords.com/press/release/32
http://blog.smashwords.com/2012/03/inside-mind-of-best-selling-erotica.html

And to broaden the discussion field:
Are there conditions under which censorship is the logical thing / the moral thing / the best thing / etc to do?
If so, who should do it?

I think censoring should be by parents for their children so they read what is age appropriate (notice I said age, not subject) but other than that no one else should be censoring what someone else reads. Censoring does not just happen with erotica/porn, but all genres. I am appalled when fairly intelligent people tell me, "my minister told me not to read it because it deals with whatever," and they listen without question. If someone tells me not to read something, I'm going to check it out and see why. But I know myself that I read Lady Chatterly's Lover in my 20's because it was a banned book and I read for the titilating parts. When I read it again 25 years later I realized there were many layers in that novel that the euphemist sex was such a small part that the story would have been the same without it. All too often people only look at a small thing in a book and miss the bigger picture.