The study, which is yet to be peer reviewed...
So you and five friends all write papers about how peer reviewers tend to approve papers that cite the reviewer...
and each of you cites the others' papers....
and each of you approves the others' papers for publication...
and you submit them (all) to five publications staggered over five months...
and within half a year you are now a PUBLISHED AUTHOR, a noted PEER REVIEWER, and your WORK HAS BEEN CITED FAVORABLY.
Solution: international database linking authors, publications, reviewers, and disallowing Alice to approve Bob if Bob has approved the set of people who approved Alice.
Obviously "five" is a number I pulled out of thin air, because as N grows the ability for a single publication to realize what's going on becoes factorially more difficult. 3! is 6, 4! is 24, 5! is 120, and so on. And these don't need to be real friends. They could be part of a social media "group".
Back when certs were difficult for individuals to get, those of us who wanted S/MIME certs used a free service out of South Africa. The problem is you could get a free cert (from Thawte, later bought by Verisign for $3/4B) but to have it authenticated you needed "notaries" of that registrar to verify your real ID. There were not enough of us in town, so the next time we hit some convention we got small-notaries (2 points our of the 6 needed) to all notarize each other... and thus we all became big-notaries (5 points) and then ANY two of us could independently verify anyone. It was a clever system but the paperkeeping multi-year requirement was a bit onerous. We were grad-age and didn't have lawyer-sized filing cabinets.
Self-promotion, self-review, article acceptance, self-attestation... these do have a place, but to do the AAA thing properly there needs to be a mechanism. I hate to say "tracking" but paper-publishing IS public, and reviews ARE public, and anonymizing-IDs are supposed to be anonymous, so I'm not sure that's much of a problem.