Well, to be fair I have no idea what happened but depending on what they did, it could be very unfair to say they just "hurt his feelings".
That being said, yeah, I think that poster is being a little delusional that they'd shut the whole store down over what he did.
At best Best Buy fires anyone involved that caused them to have to pay out some large fine and maybe any of the managers that were around at the time. But they aren't going to shut the store down over it. And that is how it should be, cause the whole store shouldn't suffer because of some really bad employees (but the bad employees should be gone).