It's not at all the same. The behavior you refer to can be checked and proved by anyone as long as they know what to look for. Whereas the FB "tweak to the algo

It's not at all the same. The behavior you refer to can be checked and proved by anyone as long as they know what to look for. Whereas the FB "tweak to the algorithm" discussed here cannot. This is exactly what I was saying above, I don't see what's so hard to understand here. Maybe, since you admit to have worked on said algorithm, it's a case of Upton Sinclair's dictum "“It's difficult to get a man to understand something when his salary depends on not understanding it"?