Conventional wisdom says that open standards are created by endless deliberations among experts and big tech companies, and those do sometimes gain traction.
But this is how it usually happens: Someone goes first. No one thinks of it as an open standard. Then someone clones it. All of a sudden people get ideas. Inspired, someone goes third. At this point it's inevitable that there will be a fourth and fifth and so on.
Something tells me this is going to happen more and more with information and ideas flowing so freely these days.