I believe smooth was very focused on how scams can detract from altcoins. But also we have to balance that against no one here was anointed the "altcoin police".
Policing implies authority, of which none is claimed, so that meme is quite irrelevant. Stating an opinion is something else. While there will always be a vocal subset of the audience who aggressively oppose an opinion contrary to their interests, they are not the audience of interest.