Fora for immersion?
I know Jeux Video, which is full of trolls (according to people who've been there) and Reddit, which is, well, Reddit and completely full of nuance. I also knew of 4chan's Francophone threads which I don't have access to anymore.
So any ideas? Traffic is important so don't recommend dead forums. Thanks.
Have you considered the reverse tree forums here. For example: the English for French speakers forum, will have people learning English, but discussing it in French.