Being new to this site but not to AAS I am aware of some of the negative things that can happen to both suppliers and buyer (also website owners) if people are ignorant with their posting. I have noticed there are a lot of mods having to delete and edit post because of people posting irrelevant reviews, ignorant non fact based post, or giving insight or disclosing things that should be private and could lead to trouble.

I have seen other website before put a hold on posting on new accounts for a week and also require them to take a short quiz to be able to post. I think this would make some peoples jobs easier and maybe lead to more quality comments.
Not saying it should be anything super difficult, maybe just a few questions to see if over the week they have reviewed the stickied post about what they can and cannot post, how to write a review, and what and where things should be posted.

This could also help with people creating multiple accounts to spam bad reviews.
Let me know what you guys think.