Not sure why the pp used that source or even what it says, as I don't go to sites like that but there are other sources to show that an awful lot of energy is being put into hating a piece of cloth that doesn't necessarily means all you think it means nor did it do what you think it did. Did it fly over slavery? Not exactly. It was a battle flag so actually it flew over a battle. And it was the fourth or more flag of the Confederacy. The flag that flew the longest over slavery was the good ol' red, white and blue of the USA. So you can't really say it represents slavery because it really doesn't.
Do you dislike it because it is thought to represent the south? So, does that mean you automatically hate the south? Why? Because of slavery? Well, might want to read up on that history too then. The south depended on agriculture. And they are the very wrong idea that they "needed" slaves. Now I agree that they were very, very wrong in ever having slaves to begin with and to continue to have them was horrendous but to sit there and pretend that it was only the south is a bit ridiculous.
Now if you are choosing to hate the flag because it is used by a certain hate group that most people agree is a really bad thing, well then there is another flag you have to hate too. Yep, again, the good ol' red, white and blue.
I don't know what any one certain flag means to any one certain person. I don't really care. But to assume it means the same to everyone is wrong because it doesn't.
I don't love that flag. I don't know anyone who "loves" it. But I think the hate for it is misplaced too.