It's not.
You surrender your right in order to be protected from libelous claims.
(
Your watch is still saving for 5K but has learnt about 'nose bondage',
Tue 27 Nov 2007, 10:50,
archived)
as well as
restrictions on pron, blasphemy, inciting hatred on the grounds of race, gender, sexuality etc.
We never have had, and never will have complete freedom of speech in the UK
get over it.
(
faragher dub,
Tue 27 Nov 2007, 11:17,
archived)