What common feature found in files might suggest the innocence of a user suspected of collecting pornographic images?

The common feature that might suggest the innocence of a user suspected of collecting pornographic images is indicated by the HTTP headers showing that each file is the result of a REDIRECT. This is significant because when files are accessed via redirects, it typically suggests that the user did not directly seek out each individual file but was instead directed to them through another webpage or link. This behavior is often indicative of passive browsing or incidental exposure to content rather than active searching or collecting.

If a user were intentionally seeking out pornographic content, we would expect to see files stemming directly from user-typed URLs or downloads from the same URL, which wouldn't involve the REDIRECT process. The presence of a redirect indicates that the user may have been led to the content unintentionally, perhaps by clicking on a link that took them elsewhere, suggesting a lack of intent regarding the collection of such files.

This detail can be crucial in differentiating between someone who is innocently browsing and someone who is actively curating a collection of explicit material.