It's not just standard protocols, though is it? It's also the ability to freely use those protocols with Facebook. An example: SMTP, to prevent spam many SMTP

It's not just standard protocols, though is it? It's also the ability to freely use those protocols with Facebook. An example: SMTP, to prevent spam many SMTP hosting companies activity block anyone they deem to be spammers, or those who don't properly use things like SPF. So even SMTP is t really open any more. There's a general agreement from most SMTP providers that they will accept and deliver emails for those that play by the rules. (I don't disagree with this, just pointing out that it's not quite as simple as just standards, etc)