There's been several stories within the past day about the CEO Ayman Hariri and his former company that mistreated thousands of their employees. Due to that backlash, his team has been contacting news outlets to correct their stories, including some shady editing his Wikipedia page to reflect the new info. The people who developed the app I'm also not sure about, as I really dislike how Facebook is so intrusive, it's like they'll show ads about what you dreamed about last night.
Not to mention I've had several issues with the app, such as it being really buggy, having to use a phone number to sign up along with an account, and a beautiful UI but hard to actually find people. I've found engagement to be really poor, too.
Of course, this is from what I read and it was enough to move me to delete my account. If anyone else continues to use the service, I'm interested in how and if the service will continue on.