You're right, it has been discussed before - Frances has explained what it's all about, and it's not censorship. When I couldn't work out why I'd had a message refused not so long ago I sent a message to genealogy@isleofman.com as was suggested with the refusal message and got an explanation very quickly of which (normally innocent) word was blocking the post.
My 'interfering hat' has had too much use today. Going to have a lie down in a darkened room now.....