They may be using something like Sift for security checking and something of yours was flagged. Source: almost 2 years ago

But sorry to break it to you, this has been done at a really large scale already although most consumers are not aware. One big player here is https://sift.com/ Almost every major retailer uses their service exactly for the reasons you mention. Source: almost 3 years ago

Reddit, for one. A pretty big list on their homepage. Source: almost 3 years ago

I'm the developer of an Apple Music client called Soor. I recently launched an update adding live activities support with a feature called Live insights. Source: over 1 year ago