In https://bugzillapreview.wmflabs.org/T4308 (migrated from https://bugzilla.wikimedia.org/show_bug.cgi?id=67021), my comment is shown under my Phabricator username, so there is no "pleasestand wrote:" line. However, even though I am listed as the task's author, the description does say "Author: pleasestand". Including that fact in the description is redundant, so it should not be there.
Removing that line from the description would require batches of cache invalidation, replacing the whole content and wiping it out. This would require redoing lots of logic and add quite some complexity to the ongoing metadata migration so we'd prefer to avoid it currently.
People could still edit the description manually if they strongly feel about it.