Well perhaps your point was that those services were walled gardens & incompatible with each other before the Internet took off. The Internet opening up with it

Well perhaps your point was that those services were walled gardens & incompatible with each other before the Internet took off. The Internet opening up with it's low cost ISPs & flexibility was the end of those walled garden services & many BBSs, true. That doesn't really have anything to do with the Internet being centrally planned or not. It was just planned to be more open than those other services.