If the whole thing is based on freedom of speech then the community deserves to at least know and be informed. It's a positive thing CLAM is being picked up even if in negative ways.
Sorry if you don't feel that way, but it is as simple as that.
I think it's a positive sign that CLAM is valued highly enough that thieves want to steal it. We see the Serbian scammer on IRC trying to scam people out of their CLAMs and now this Ponzi scheme is trying to steal it too.
I think if I was you I would have mentioned it in that light: "good news for CLAM : even lowlife scammers want a piece of the action!" or something.
What I wouldn't have done is signed up and posted a fucking referral link to the scam!