One smaller social media app I used to sysad over actually overwrote data to be purged as xX0-Deleted-oXx and similar (there were a few variants depending on da

One smaller social media app I used to sysad over actually overwrote data to be purged as xX0-Deleted-oXx and similar (there were a few variants depending on data constraints). There was no "show_deleted_when" garbage. Then weekly, a task went in and then purged rows with those non-content placeholders to completely purge that user, if a user-purge was requested.