Review Censorship - Poor ratings deleted completely!

Without any forewarning or communication from Envato my detail review of Extendons WooCommerce Product Image Watermark Plugin was removed. I find it strange how some poorly rated product reviews just seem to magically disappear. There is obviously censorship of reviews if the authors do not like them. I find it even stranger when a product has 227 Sales but only five 5 star reviews! I assume this post will also get censored.

Censorship has nothing to do with it. You will find a plenty of 1 star reviews in many items all across the Envato marketplaces.
Here is the official policy about ratings removal:

You can of course contact the Envato Support if you think your review didn’t break any of those rules.

I see nothing that violates the policy so may be you could point out what part?

I didn’t see your review and I am not Envato staff. Again, if you think that your review didn’t broke any rules or anything, feel free to contact Envato Support. You can use the link at the end of the article I’ve shared.