This is an intriguing situation. I would advise the OP to write about historical figures like Hitler on a different blogging platform and simply include a link to that blog post here on chess.com for your readers. That maintains your happiness and Chess.com's.
And why did it take them a whole seven days or more to finally bring down the blog? Well, they've mastered the art of procrastination at fixing bugs and taking business decisions.
The fact that they didnt remove it gives me faith in humanity