1. Not everyone is wearing a preset. They're probably wearing the 22 mass markings, which is pretty popular. Try downloading that or their preset. - And sadly, there's no other way unless the preset was public.
2. Make sure you add your username. In other words, the log in. Just simply write your username. Then, go to your Tools>Preset and export the preset. It should say- after the export, for example, Preach_8 or username_8. Username(your username)_number (the preset number) Hope this helps.