A quick Question on the world event

[Obi2Kenobi]

If I get a message saying someting like "1130 Stones of jordan sold to vendors", is the chance of DC appearing large or small?

There's really no way to tell. If you get 1130 SoJs sold, and then 10 seconds later you get 1131 SoJs sold, then you should definately stay in the game.