No, the problem is that it isn't only a button, it's a tracker and it breaks EU-law. Right now it is "meh - other people's, other countries privacy laws" from F

No, the problem is that it isn't only a button, it's a tracker and it breaks EU-law. Right now it is "meh - other people's, other countries privacy laws" from FB, we'll see if the EU stands up for European people against US data collection without permission. I honestly hope this damages FBs reputation and leads to a decline in user numbers if only for other (better, I hope) service to emerge. Something that has a moral/ethical compass.