Unless your fear is that Facebook wants to record your conversations on the sly, then yes, that is a completely insane thing to be worried about, and I'd ask for proof.
Facebook doing what Shazam does doesn't somehow make it more skeevy.
> Unless your fear is that Facebook wants to record your conversations on the sly
Why wouldn't they do that? They could get more valuable marketing data. If they run voice recognition software, they can automatically pick out brand names, or listen in if you're talking about upcoming purchases. Maybe they overhear you having a fight with your spouse, so they can position ads for divorce attorneys when you log in to Facebook.
> Facebook doing what Shazam does doesn't somehow make it more skeevy.
Yes, it does, because Facebook is inherently a way skeevier company than Shazam. All you have to do is look at their history to date to see that.
On the other hand they are not in a position to combine it with a truckload of your (partially at least) most intimate data, sucked up with all their other data gathering ventures.
For what it's worth: I'm putting my money where my mouth is and "deleted" my Facebook account years ago.
Facebook doing what Shazam does doesn't somehow make it more skeevy.