I used 4chan a lot from 2012-2018. The only board I still post on is /a/. Even on /a/, normalfags infest every thread. 4chan is not usable anymore. I'm sure that even in 2012, 4chan was in a decrepit state, but it was much better than it is today.
A few years ago, I posted frequently on /r9k/. That was my introduction to the blackpill and what lead me to incels. A few years ago, normalfag threads were common, but there were good threads too. Today, you can't even look at the catalog without your eyes being assaulted by gay threads, trap threads, "fembot" threads, "my girlfriend" threads, etc..
"Incel" is also a common insult on 4chan, something I did not even realize until recently.
The mods there are normalfags as well. They're cucks who care about things such as "racism", "sexism", "homophobia", "misogyny", etc.., as proven by the IRC logs. They are anti-loli as well, which is one factor in /a/'s decline. I've seen threads about Kodomo no Jikan and Mitsudomoe get deleted in 20 minutes, yet the most egregious off topic normalfag threads often stay up for hours.
Normalfaggotry is like a virus. It infects its host, steals the energy of its host, and destroys its host from within. Death ensues without medical intervention.