Snap shares dropped about 7 percent on Thursday, after reality star Kylie Jenner told her 24.5 million Twitter followers she no longer uses the app.
Snap lost well over $1 billion in market capitalization on Thursday.
Jenner added her voice to a growing chorus criticizing Snapchat's redesign.
People have criticized the app for blurring separate features together and promoting sponsored content. Almost immediately after she posted it, Jenner's tweet attracted the attention of some Twitter bots.
Two bots with the same profile picture and close to the same Twitter handles as Jenner took notice. They proceeded to tweet at Jenner 9 times.