He knew it was dangerous, he knew he might die, but he truly believed the reward outweighed the sacrifice he would make of the mortal chains that bound him to this world...because he was for sure dead after this, it was more of a question of when than if. But if he could get away with this...with Natasha as his first victim, then he could get away with all of them.

His victory in this matter was only lessened by the fact that he wasn't actually doing this in her vicinity, he was merely compiling snippets of life captured by Mr. Stark's A.I.s and using the app to green screen himself into the videos. But still, the danger was great. Natasha was a worthy opponent, and, he believed, the only person (other than Mr. Stark of course) who had any chance of finding out what he was doing before he could finish his masterpiece.

Even with all these worries weighing heavily on his mind, though, eventually he found that the need was too great. How could he post this, he would later be asked. How could he endanger the team by exposing them like this? Their not-so-shining moments? Their weaknesses?

This was fair, true. But the Avengers underestimated him in this one thing. Peter was gen Z through and through (self deprecating jokes, dark humor, WW3 jokes and all), so the better question would be, really...how could he not?

1 minute in and there were 5,000 likes.
10 minutes in with 1.2 million likes.
1 hour in and it was the most watched video seen 'round the world.

The video begins with a compilation of what is most likely security feeds given the angle and lack of acknowledgment at being filmed.
Tony opens the silverware drawer and among the spoons is a throwing knife.
Clint opens a drawer full of clothes in what appears to be a bedroom and a dagger falls to the ground as he removes a pair of boxers.
While leaning against the counter in the kitchen with a bowl in her hand, Darcy shakes a cereal box, appears to hear something in the bottom, and her obvious excitement as she empties the whole box into her bowl makes one think a toy is about to fall out, but instead a throwing star falls into her coco puffs.

Once the videos finish, the screen cuts to one last security feed. As the night vision camera shows Natasha storing a pair of nunchucks in a (now) false leg of an entryway table, a badly green screened red and blue webbed hand is seen posed on the edge of the screen, and a young man's voice, sounding calmer than he feels, deadpans his rehearsed speech all in one breath. "Natasha leaves her weapons in really obscure places and no one is willing to call her out because we don't want to die...fucking minnnnnnt."

And thus, the saga begins.