If someone flags your comment on HN, you can only post about 4 comments per day and news submit feature is "practically" disabled - HN displays a "slow down, don't submit so fast" Error message which of course makes little sense. Also your comments will start with a lower/negative value behind the scene, you will find your posts on the bottom even if it says 1 votes, and other comments with negative value may be above yours.
There is a lot of monitoring by companies contracted obviously by $$ going on, to shape PR and public opinion. Be it employees, fanboys, or paid PR drones, it doesn't matter, they are quite toxic to the community at large I would say. I would wish more moderation in regard, and the removal of the downvote- and flag-functionality for everyone (but moderators).