Whats with the r/RocketLeague and r/RocketLeagueExchange blackout?

Im wondering why these communities are blacked out. Im not able to post any RL clips or Trade offers. Can anyone explain why?

Also, here is me finally getting Black Diecis:

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https://preview.redd.it/hjdsavms2i5b1.png?width=1920&format=png&auto=webp&v=enabled&s=2d200beadd4d627a0c0f115be190d28cc5f88f0b