Given the "nature" of 4chan (only a few hundred posts and a few thousand comments at a time, the vast majority of it shitposts and spam), it just can't do that. The imageboard format and limits basically prevent any scaling and mainstream success. If you follow any of the general threads in pol or sp for a while, you'll spot the same few people all the time, it's a tiny community of active users.
thatguy0900|25 days ago
mort96|25 days ago
If you radicalise the 0.01% of people who are prolific meme creators, you radicalise the masses.
* I did say old...