And finally, because prominent Moneroers, certainly including myself and fluffypony among them, are on record repeatedly telling people not to buy Monero unless they are extreme speculators who are comfortable with the fact they will likely lose money.
You are the moderator of a Monero thread where it's constantly being advertised how buying Monero is a good investment and will make the buyer a lot of money. Because you are the moderator, you have chosen to allow such posts being published and remain visible for all greedy noobs ready to lose their money.
If you had an unmoderated thread instead, you wouldn't have taken the responsibility on what remains published and what doesn't upon yourself and the liability would unequivocally fall upwards to the forum moderators and admins alone. As it currently stands, to further back your stance quoted above, perhaps it would be a good idea from both ethical and legal standpoints for you to start deleting at least the most outrageous m00n posts. Unless you think the value of the asset can only go up and no one will ever lose any money thus not getting scammed by your own definition.
He is totally lost.