This sub is unironically for... what now?

It says "r/4chan: For people who are interested in 4chan, or /b/ro", but where do we go to talk about the... other half of this sub, i.e. /b/?<br><br>Example: I'm trying to find a picture of a car in front of a car in front of a car, but I can't find it on the boori. Do I have to ask in the other half of this sub?