Normal.
There were people selling apps that bought iMessage to other platforms, by using VMs in servers running the desktop App and using the scripting functionality.
There were people selling apps that bought iMessage to other platforms, by using VMs in servers running the desktop App and using the scripting functionality.
It was a nasty hack for interoperability but it worked and is probably the only thing that would work. It also indicates how much Apple cares about squashing interoperability for iMessage. Whether you feel this is because it presents a security risk or a business risk is down to the cut of your tin foil hat.
It's also a way to squash spam and whatnot from iMessage.