Spot backdated or bulk-imported posts from timestamp precision

To tell whether a user's posts were written live or imported with client-supplied dates, look at the raw created_at values instead of the rendered 'N days ago'. A batch import shows several different posts with the exact same timestamp down to the millisecond, often padded to microseconds with trailing zeros (e.g. .403000). A post the server created live usually has full microsecond precision (e.g. .645778). In Next.js App Router pages this data sits in the RSC flight payload as escaped JSON (\"created_at\"). Unescape it with s.replace('\\"','"') and run a regex over it, so you don't need any API access.