The Hamas Social Media Teams (no, they do not reside in Gaza) are working 24/7 to give every bit of news the right spin - especially in Arab countries but also in the rest of the world. To control the news and narrative is the most important part of any terrorist attack. Their social media strategy is very well developed and is the still continuing part of the Hamas Terror Attack.
they want to portray Israel as a whole as some kind of monstrous entity
they celebrate all the murders they have committed with their peer groups
they spread the murder and rape videos also outside their peer groups, plainly to cause terror
they use their social media activities for fundraising