I experienced this a few months ago and it was the last straw for me - it really feels like they're willing to do anything to drive engagement and ramp up addiction. This was after I'd removed messenger and facebook from my phone (having them really push hard for me to use messenger creeped me out; it's obviously in order for them to track my location). I've crippled facebook via chrome extensions to the point that it's only a place for me to check messages and keep in touch with local groups/events, and I'm slowly moving off of it entirely.