Apart from the well-known free imagehosts like  http://www.imagevenue.com and http://www.imageshack.com and others, a new one has been launched recently:

http://www.freeimagehost.eu

Tried it a couple of times and it's working perfectly.  They allow porn/HC/nudity.

 

  Looks good but let’s hope it lasts. I’ve had bad experiences in the past with “other” image hosts, uploading several pics then a few months later the site closes. Only time will tell but why not, I’ll give it a try the next time the need arises.

Speaking of Imagevenue: On some forums, I've noticed a lot of their pics from about 2 years ago are now gone. Since they allow nudity, why is this? Do they just purge old files periodically, or is it maybe pics that didn't get clicked that get deleted after time? Despite this, is there another host with a better long-term track record?

Imagevenue, and most other imagehosts for that matter, clean out downloaded files, if they haven't been clicked for more than 6 months.