Platform Notes

Independent publication · Research summaries

Notes on how online platforms are studied

Platform Notes reads the research literature on digital marketplaces, creator platforms and online labour markets, and reports what the studies measured, who measured it, and where the methods are contested.

The masthead device is a long-tail distribution, the shape most often described in studies of platform participation. It is a drawing, not a dataset, and represents no measurement.

Library

Three summaries

Each entry describes one body of research: the question, the data, the reported result, and the constraints the authors placed on their own conclusions.

No. 03

Reputation inflation: what happens to rating systems over time

Across six years of marketplace records the share of perfect ratings rose from a third to more than four in five. The researchers argue the change was not improvement.

Editorial standards

Four rules this publication follows

  1. Sources are named, not gestured at

    Every factual claim on this site traces to a published study with named authors and a locatable title. Where the evidence is contested or the estimate is disputed, that is stated in the same paragraph as the finding, not in a footnote.

  2. Limits are printed beside findings

    Research summaries here carry the methodological constraints the original authors listed: sample coverage, selection, the period studied, and what the data structure cannot distinguish. A finding without its limits is not a finding.

  3. Nothing is assumed about the reader

    Articles describe research populations and study designs. No page on this site presumes any situation, condition, intention or circumstance on the part of a visitor, and no headline is written as a question about a visitor's life.

  4. No accounts of individual results

    Platform Notes does not publish testimonials, customer reviews, success stories, case studies of named individuals, or before-and-after accounts, in any section of the site. It also does not solicit them.

Scope

What Platform Notes is not

Stated directly, so that the boundaries of this publication are not left to inference:

  • It is not professional, financial, legal, tax or career advice.
  • It is not an assessment, diagnosis or evaluation of any individual situation.
  • It is not personalised guidance, coaching, consulting or mentorship.
  • It makes no claim about outcomes, results or consequences for any reader.
  • It is not a crisis, emergency or support service.
  • It is not intended for anyone under 18 years of age.

Research described on this site concerns populations, samples and averages. A published average is a statement about a dataset. It is not a statement about any individual, and this publication does not present it as one.

Questions

Common questions

What does Platform Notes publish?

Summaries of peer-reviewed papers, working papers and administrative-data reports about online platforms, digital marketplaces and online labour markets. Each summary names the researchers, describes the method, reports the findings and states the limitations the authors themselves recorded.

Is there a charge to read the articles?

No. The library on this site is published openly and requires no account, subscription or payment. Where a paid compilation is offered separately, it is governed by the Terms of Use and the Refund Policy linked in the footer.

How do refunds work?

Any paid item associated with this publication carries a 30-day refund window from the date of purchase. Requests are made in writing to the support address. Full conditions, timelines and limits are set out on the Refund Policy page.

Does Platform Notes offer consultations, reviews or personalised guidance?

No. There is no consultation service, no one-to-one guidance, no coaching and no individual review of anyone's situation. Correspondence is limited to questions about published articles, corrections and administrative matters.

Does the site publish testimonials or success stories?

No. Platform Notes does not publish testimonials, reviews, endorsements or accounts of individual results anywhere on the site, and does not collect them. Research summaries describe study populations, never named individuals presented as examples.

What data does the site collect?

The site does not require an account and does not host comment forms. Server logs, any analytics in use, and correspondence sent to the support address are described in the Privacy Policy, together with the legal bases, retention periods and the rights available under the LGPD and the GDPR.

Support

Written correspondence

Platform Notes is reachable at one address, in writing, in English or Portuguese. Replies are sent within two business days, Monday to Friday, 09:00–18:00 Brasília time. There is no telephone line and no physical office open to visitors.

support@platformnotes.site

Correction requests are welcome and are handled under the policy described on the About page. Requests relating to personal data are handled under the Privacy Policy.