To be honest, if they were to listen to you, even you couldn't write in that thread since you have <100 activity.
As far as the new scamcoins and shitcoins are concerned, you might block them, and they will move somewhere else. And i'm sure forum staff doesn't want to loose so much traffic.
Besides, if you feel coins are bad, just avoid them all together.
I agree some are total BS and are ment to rob people of their BTC, but i also see that around 1/3 of supporters really like the coin.
So you never know, shitcoin one day, popular the other. (like Doge, and so many other)
That's why I won't plan starting another shit coin just to fill up my pocket with 1 hit wonder.
Missing an opportunity of starting a worthy coin after reaching Activity: 100+ will be a member's lifetime chance either wasted or not.