Dang, the individual you were replying to, is the lead moderator. (dang is his first name and his initial -- Dan G. The G is for Gackle) The moderators are routinely accused of censorship, of single-handedly suppressing articles that the broader membership flagged off the front page, etc.

It takes more than one flag to kill an item. I think there is a karma threshold for flagging, so -- iirc -- no, simply having an account doesn't allow someone to flag it.