The thing is, if you have to clear posts that aren't up to current quality standards, you have something like 1/4 of the site waiting to be flagged. Would you tackle such a huge task?
"There are worse things to flag before that" is a moot argument because it concerns a minority of undesired posts that will all be found and deleted over time.
post #409763 is not undesired but merely kind of old. Nothing ToS related, no error, no particular flaw, etc. And the site has 150k posts like that.
Deleting a few random finds in this sea of obsolete material is achieving nothing meaningful.
Unless you have something against post #409763 in particular, you're probably interested in starting a hunt at order:id_asc.
But this is how I've seen things go. If we're someday given green lights for a purge of such scale expect me to flag entire pages of artists' older works.
e: ↓aww.
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