No on expects nice things from anyone, this is reality but all militant atheists on the internet do this shit all the time. They go to crazy lengths to look for bad things that fuel their hatred and bad perception of Muslims. If they don't find anything they do what the girl did and create some bullshit story just so she can continue this crusade against Islam.
Some even make entire websites and spend unbelievable amount of hours into this shit. That's why almost all of them are teenagers who have that kind of time on their hands. That also explains the emotions they put into this and how seriously they take themselves. If not teenagers then it's unemployed basement dwelling neckbeards who have absolutely no life what's so ever.
Other than those two groups I've never seen anyone respectable claim atheist or associate with them. Most non believers just claim "Non Religious" and distance themselves from the atheist label.
How do I know all this about Atheists? Because this was me a while back.

Some of the things I posted were truly cringeworthy looking back to it now. It was so bad that I deleted all my accounts from that phase.

teenage brains are something wallahi