Pinterest Board sections, which gives users a way to slice a bigger idea — like a wedding — into smaller components while sitting on the same board. Those kinds of big events can turn out to be huge life moments, and very costly, and Pinterest definitely wants to be the home for them as they are times when users are deeply engaged with the service and spending a lot of time on it. If you’re planning a wedding, for example, there are a ton of moving parts. You probably have to think about what your venue wants to look like, what you’ll want to wear and flower arrangements (if the last one is Your Kind of Thing). For big events where you want to dive immediately into search-and-destroy mode, like a wedding — and especially ones where you want to involve friends — having a central hub for everything makes a ton of sense just from a pure efficiency point of view.