JakeRay I was referring to dummy accounts in the way that the original replier was speaking of them. Of course, you can further separate accounts to main, dummy/secondary, tertiary and etc., and bot accounts. But considering we're talking about reviews, if someone were to review on their dummy account, as in secondary/extra accounts, then I'd be suspicious that it's giving hate reviews because why otherwise wouldn't that review be on the main account? Usually, extra accounts on the reader side are made for getting extra free SS (back in the day) and free passes to read more content. In our conversation, as Arkinslize referred to them initially, dummy accounts to my understanding were being related as the "bot accounts" that artificially boost power stone amounts.
Thus, on the writer side, yes, I'd still equate human operated extra accounts that gives power stones to a certain story as "dummy accounts" in the terminology used for this conversation alone. That writer just didn't know how to make fake accounts through bots so they have to do it manually---I see that essentially as equivalent to one another. In short, I wasn't actually stating dummy=bot accounts in the way that you mentioned and thought I might've meant; it's just to keep the terminology consistent for this particular conversation in order to avoid confusion. As you said, dummy account is somewhat ambiguous. Considering my statement was in reply to Arkinslize, it appears that what dummy account was referring to was understood on both sides.
That kind of trust system, to my observation, hasn't been implemented on any writing platform, so I highly doubt that Webnovel would ever adopt that system considering their current system doesn't even match up to better existing review systems that have a dislike button, editable reviews, and single reviews per user. Before even getting into more "complicated" systems (on a development standpoint), WN doesn't even offer some of the "basics" seen on other sites.
However, since we do have account "levels" on this site earned through exp, as others have suggested previously (iirc, it was StenDuring), WN could use those levels to manage the ability to post reviews and other types of actions. But from the moderation standpoint alone, someone is still judging what a review ought to be deleted or not, so human oversight is still necessary in a trust factor system, making that system essential just boil down to moderation alone with no need for web/app development of trust levels in the code itself.
What I think you might be thinking of is a system like Royal Road's reputation system. Those that get upvotes on their posted content by members of the community gain higher amount of reputation points, so people can easily see if they're respected members of the community. So far, I haven't seen anyone abuse that system on RR, and in fact, it's rather helpful and quite accurate. Still, most of the problem lies in the people themselves. One can only do so much to moderate, judge, and level the field fairly.