They "sort-of" did. The Open Compute Project (https://www.opencompute.org/) is an effort in which Facebook played a major role. The motivation, for them, is to break free of the shackles put on them by computing and networking equipment vendors (like Cisco). Facebook is big enough that they could design their own stuff, and try to make it a commodity which, as a side-effect, allows others to get involved and benefit from as well. It's hard to say how well this has worked but it was "an initiative".