Reviews from closed or inactive stores appearing as active
Just to add a related observation: we started seeing a different but possibly connected issue very recently. In our case, reviews from closed or inactive stores are appearing as active instead of being archived, which is impacting the overall rating.
I actually opened a separate thread about this yesterday, but wanted to mention it here as well in case it is tied to the same / similar review system behavior you were investigating.
Would be great if you could take a look when you have a chance. Thanks in advance.