Much like awareness ribbons, the White Knot symbolizes the ability for everyone to get married, regardless of gender of partner. They've mixed two traditionally American symbols of marriage - tying the knot and the color white - to visually support marriage equality.
Erica of swirlspice and cinna.mn says,
That’s cool and all. I get where they’re coming from. But who decided this? A bunch of white guys in West Hollywood? Because there are lots of marriage traditions out there and this seems like an awfully white-culture-centric choice of symbol.
I’d still wear one, though.
She's got a good point - it's representative of White American marriage culture, which is reflected in the very symbol they chose. But like colored ribbons or those plastic blank-strong bracelets, they're a very visible sign of support for marriage equality.
I'd wear one too.