The discord server I don’t know but as for the harassment, it was the worst thing about the Marketplace because many Buyers wanted to burn your product’s page, simply because they didn’t like Price or the character look funny in the photos and they did that with all my products… Epic did not remove them even do there was a supposed “Report” button but did nothing. They abuse it because the Question section was public in our products. I really hope they don’t make the same mistake again. Because they don’t ask questions… they trash your products with harassment comments.
All Questions should be sent the Seller’s Email, while Text-Reviews can be public with the condition that you need have purchase that product before leaving a Review. That’s how the AppStore handles it and the way you get rid of bullies.