The well known screamer image associated with the Creepypasta has been around long enough since 2005. Predating the story, two people whom have browsed around the internet that long ago said the image was originally came from some ugly autistic Stickam girl who used to flirt with any guy she cammed with at the time. There are two possibilites, but they have never been confirmed despite the fact people love to mix in things that happened years later.
We've already covered up the Katy Robinson rumor, stating the fact that she is a living girl named Heather White, and one of her old photos were posted since late 2004, as well in the Christian parody site, "TrueChristian.com"'s hate e-mails section. Heather had nothing to do with the rumor going about around 2008, nor was the girl behind the photoshops.
Going back from before, these people back in the internet's hayday (referred to as oldfags) claimed that the unaltered photo was cropped, and apparently showed the girl's entire room, with a dresser by her from where she is standing or sitting. One anon (who was a sketch artist) stated that the image was cropped down and photoshopped in order to make her face more ugly. He said it was a normal photo of a woman for some reason, but that doesn't change the fact that the girl looked ugly. Old anon #1 described the girl as curvy, strawberry blonde, with freckles and a big smile.
Anon #2 (the Stickam user) claimed the girl came from that cam site, but he described the girl more differently. She had a round face with buggy eyeballs, crooked teeth, and big gums. Since she looked ugly, one of her photos from the site were stolen and posted to /b/ by some impersonator that acted like the girl. In the captions, they wrote: "Am I pretty?" with the photo of the girl smiling wide in a closet. Because of the fact that the bright light from the monitor was blocking her face, she looked kinda creepy and got photoshopped by some trolls in their thread.
Later, when the Stickam user figured out he saw the meme posted on /b/ at the time, the girl had no idea what 4chan was. If the photoshops and images were originally posted on /b/, one of them had to be crossposted to Pya.cc around that late. But if the Japanese site was considered to be THE actual source for these photoshops, then we have no idea where these photoshops came from. That's why we have been getting in touch with oldfags from /x/.
Anon #3 claimed that he saw the thread with the girl in it, saying that she looked Latina or Native, and Anon #4 said that the girl was young and skinnier when she "used to" start camming at the time.
I'm starting to lean into the theory of the photoshop being an altered photo of a Stickam girl way back then. No one has the unedited version now, but if someone ACTUALLY has it with an existing harddrive, feel free to post it here. I've tried to look for it myself, but I can't seem to find it anywhere for the life of me. Anyone willing to help?
Here are some useful threads:
https://archive.4plebs.org/x/thread/22375496/
https://archive.4plebs.org/x/thread/20651303/
https://archive.4plebs.org/x/thread/13124942/
https://archive.4plebs.org/x/thread/23477917/
https://archive.4plebs.org/x/thread/23710248/