Unpopular opinion: Posting blood-soaked knives or clothes is barbaric and, therefore, not okay. And posting the video of the sacrificial slaughter is absolutely inhumane.
The act of Qurbani is supposed to depict a father sacrificing his son for Allah, or at least his willingness to do so. I assure you; a father wouldn’t pose with the sacrificial blood of his son. If you don’t love or care for the animal, at least pretend for the sake of the religious significance it holds. Try to mourn for the animal that is supposed to be your dearest thing in the world. Allah only cares for your willingness and intent. The poor only wants the sacrificed meat as charity. But no one wants to see your blood-soaked clothes.