Unless there's also non-frivolous content in the post, the moderators are consistent about removing posts containing only that comment when they see them.
I took a fairly quick look at the post report history, and saw the most recent 22 reports you've submitted (back to Oct 11). I didn't see any for this type of post. Do you happen to remember approximately when you reported it last, or can you PM me the last moderator notification you received? If we made a mistake (and being human, it does happen), we have no problem rectifying it.
And in general: if anyone sees a "Safari is snappier" post that hasn't been moderated, it isn't because we chose to leave it unmoderated, it's - barring mistakes - because we didn't see it.