The thing is, there are obviously a lot of people out there who would disagree with you... And most of them aren't going to be on this forum, because as soon as they walk into AT&T or whatever and hear WP doesn't have things like instagram, they're not even going to bother. I'm one of the few that's open minded. So yeah... do you want to be using a niche platform that everyone gives up on in a few years? Or do you want to be using a successful OS with tons of support (both third party and MS) for years to come? If the latter, they have to give consumers the biggest variety of options of what they can do with their phone.
That's not what I'm asking for at all. I didn't even have my old facebook app set to push notification because that's not what I was looking for (I agree, it would be annoying to have every device going off at once).
All I want is when I open up my "conversation" with a person, I want it to be able to display all the previous messages in that conversation. With the iPhone and Android facebook and facebook messenger apps that's possible, because they all download the messages directly from Facebook's servers each time you open it up. You don't get a new "ding" for each old message, because it knows that you've already read them through another medium. WP's chat integration is unable to do that (probably because they're just working with the public API as opposed to having facebook develop for them). Which would be FINE, if there were an app that could. Just give us both options... the integration for people who want it, and the full facebook experience through an app for people who want that.