How did a group dedicated to discussion regarding a Democratic POTUS, on an ostensibly ...

[tblue37]

56. It is very easy to use a group's self-selected label

as a slur against them--just as we often do with "Teabagger." Even the less risible "Tea Party" can be used as a slur, as in, "You can't trust a thing that guy says. He is Tea Party all the way."

It's all in the way the label is used.

The OP is pointing out that many posters use "BOG" not merely to identify the group and its members, but in a tone and in posts that clearly indicate contempt for them.

The word “epithet” can mean merely a neutral nickname or label, but it can also mean [font size = "+1"]“a word, phrase, etc., used invectively as a term of abuse or contempt, to express hostility, or the like”[/font] <emphasis added>. (Since you seem eager to challenge me as if I have no idea what I am talking about, I have quoted this definition from a recognized, widely accepted dictionary—The Random House Dictionary of the English Language.)

How do I know this is what the OP means? Well, one takes meaning from context. He is saying that he is astonished—and perhaps appalled, since his phrasing and tone seems to indicate so—that on a message board supposedly dedicated to the idea that we need to elect Democrats because Republicans in general are doing great harm to our society, the acronym/nickname for a group that supports a Democratic president is used as a slur, (i.e., an epithet in the sense of definition quoted above).

If you read the first response to the OP, by The Magistrate, and then read the OP’s response to that post, then you will see that I am correct in interpreting the OP’s meaning in his original post.