Does it offend you? It depends how you look at it. Just like swastikas it's how you look at it. A confederate flag can symbolize slavery, treason, and the slaughter of many to keep some from being equal, or it can symbolize the south in general. The same is true for swastikas, the can be a symbol of peace or genocide. It's all up to you, does it offend you? If so, report it.
No because it's true meanings are power of state over country, you are an imbecile for thinking so. Unless it is paired with racist slang or such, however this is ridiculous that you are that ignorant.
Sometimes you get the coal mine, and sometimes you get the shaft.