> Instead of telling another team member that he was wrong, I shared an experiment and results to demonstrate so, in order to minimize argumentation. [...] my overall performance was deemed poor.

That's interesting, because you often hear that "code wins arguments" at FB.

>> This might take more effort now but gives vastly greater results in the long run.

I'm also surprised by this. There seems to be a lot of importance placed on moving fast. Some of FB's mantras are "DONE IS BETTER THAN PERFECT", "MOVE FAST AND BREAK THINGS", and "STAY FOCUSED AND KEEP SHIPPING".

> * Actually, I am glad to say that I am now happily employed.

Your first comment starting by saying you were unemployed. Did someone just hire you since your comment?