[sacheendra]

It is not that surprising. Facebook is complex ecosystem, and therefore experiences lots of outages/problems.

Looking at their status page (https://developers.facebook.com/status/dashboard/), they seem to have a problems every week. These are only the public ones!

I guess they figured they are losing more money due to these problems than the additional 5% they have to spend on infrastructure.

[jeffbee]

I can see why an org would choose to do this, but the number is still frightening. At Google, we were held to a limit of at most 0.01% cost for sampling LBR events. 5% for debug-ability just seems really high.