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/vr/ is usually ok, but that's because it has actual moderation. As in, if you make an off-topic /v/-tier bait post that barely has to do with retro vidya, it gets deleted. Take this as you will if you think it goes against 4chan's philosophy or some gay shit.
/mu/ on the other hand also has somewhat strict moderation, because if you say nigger it's an auto warning or ban, but the board is just shit. You should be allowed to call nigger-tier posters niggers, but that's not allowed because muh advertisers. You gotta be able to scare away taylor swift posting coombait /b/-kids by using the nigger word to keep the board decent, but nope not allowed.