It is not possible for Cryptodevil to have slandered/libeled  Scrypt.cc.  Not by UK law anyways.  Nor can anyone slander/libel a group as a whole, or a dead person.

Cryptodevil and ThePhwner have, however, libeled several individuals on here with his childish behaviour in name calling because people don't agree with their views.
The website could also be liable for allowing these libelious and malicious remarks to be published.

A major social media site was recently ordered to pay £200K damages at the high court in Belfast for exactly what's happening here

Anyone interested in a class action...  count me in