Should it also be on Best Websites Wiki?
Topic on Talk:Newgrounds
Why is this here?
Same. Maybe because GrandpaDaveSr thinks that websites with NSFW content will always be rotten. Plus, where's the miraheze version of Best Websites?
Maybe, you can help adding more pages.
Newgrounds has various problems besides NSFW content to consider it Rotten.
They are on the page itself.