I've never really had reason to tell anyone. But I wouldnt mind about telling them
Last year though, I was over my mams house and my sis was on here and I was like 'OMG YOU USE THIS FORUM TOO?! IM A MOD ON THERE!!! WHATS YOUR USERNAME?' and she just looked at me like 0_o and said she wasnt a member but checked it for news every now and again