/b/ is practically a containment board. even the dedicated containment board, /trash/ is more browsable than /b/

Well /b/ is mostly porn, along with few other boards. Relatively "normal" boards are hosted on 4channel.org domain. That said, 4chan is mostly "shitposting" and memes, don't expect serious discussions.

/b/ hasn't been "/b/" for longer than /b/ ever was "/b/" to begin with. if that makes sense.