OStatus lets people on different social networks follow each other. It's transparent to your friends, colleagues and family which software or service you use. They can get your status updates on their own sites and reply, like, or re-post your updates.
OStatus isn't a new protocol; it applies some great protocols in a natural and reasonable way to make distributed social networking possible.
So here’s the logic underlying soccer’s rules: the game is supposed to scale down, so that an ordinary youth or recreation-league game can be played under the exact same rules used by the pros. This means that the rules must be designed so that the game can be run by a single referee, without any special equipment such as a scoreboard.