u/Dalimey (who appropriately identifies as "LAWFUL STUPID" shared a warning from reddit admins issuing their final warning against making the sub NSFW (despite the fact that the users of the sub are in full support). They promised to reply to it with "roll for persuasion or intimidation" if they got 10k upvotes, and here is the result. Outstanding move.
Technically they have the ability to do anything there, whether they have dedicated tools to make it easy or worth while is likely a different story. Also heavily depends on functionality of the site.
That is correct, though there is a difference between deliberately editing comments in the database and getting pinged for a response. If the system doesn't tell or notify them explicitly that the person replied and they're not looking for a reply they just won't see it.
I just assume admins have access to prod databases and can run queries against it.
SELECT * FROM saved WHERE username = 'noodle';UPDATE post SET link = "https://youtube.com/rickroll" WHERE username = 'noodle';That kinda thing.