It's a no brainer .. I should be able to review an Amazon product as well as the same on walmart .. and my reviews should belong to me .. not a siloed corporate app !
Discussion
The problem is each of the big retailers force the manufacturers to create a variant of same product ... So that there is no comparative price available ..as well as reviews .. they think k it is smart but it is dumb in reality ...
There should be a service that link similar variants of same product say on walmart to that on Amazon and review for one of them should be visible on all the platforms ..
Only #nostr can do this ..
I mean that is the value proposition ( of #nostr ) to reviewers.. review once - view everywhere ..