I couldn't help but notice a story on Digg: Images of alcoholic drinks under the microscope from vodka c**ktails to pina colada. I checked the original Daily Mail story and saw that the word cocktail was not censored. I looked for other instances of cocktail on Digg's site and found that all instances look censored, except when the string c-o-c-k occurs in a user name, as the image below demonstrates:
This appears to be a candidate for unnecessary censorship. I sent an email to Digg asking them if this is intentional censorship or an inside joke within the site. I'll report any response (don't hold your breath).
[UPDATE: 3:01 Eastern)
Digg support did in fact reply, noting that it was a function of a profanity filter that can be turned off:
You see that because you have the profanity filter enabled. To disable it just log in and go to: