This is why his site has a hard time gaining revenue even though being in the top 1000 on Alexa, no reputable business is going to advertise where porn and violence are the norm.
If you are going to gain anything from what moot has done it is that the idea of anonymity is a very powerful thing.
Any community that gets its laughs by pretending to be idiots will eventually be flooded by actual idiots who mistakenly believe that they're in good company.
Actual /b/tards didn't like all the unsocialized newcomers arriving and parroting memes that they didn't understand ad nauseam. They also didn't like the moral crusading aspect of the newcomers. Neither of these behaviors is a negative change in the community from an outsider's perspective, but it was from an insider's perspective.
The Scientology campaign didn't change the (sometimes satirical) celebration of racism, porn, fascism, child porn, misogyny, and so on--all that pre-existed the influx of new people interested in fighting Scientology. If anything, the new people watered down the sociopathic culture of /b/.