These projects test practical reseller questions with clearly stated samples and limits. Summary data is available so readers can inspect what sits behind the headline.
The sample covered pre-owned clothing and athletic shoes from 73 seller accounts. Very short descriptions were the most common flag; photos were generally much stronger than expected.
This pilot compared 260 matched listing pairs across 12 resale categories. It reports item asking prices rather than confirmed sold prices and keeps that limitation central to the findings.
You are welcome to cite the published findings when they are relevant to your readers. Please link to the original study so people can see the methodology and limitations rather than relying on a statistic in isolation.
A clear attribution is enough: “Listalong's Australian reseller research”, linked to the relevant study. Please keep terms such as “active listing”, “asking price” and “sample” when they are material to the result.