LinkedIn brags about their use of A-B testing.¹

Here is a fucking clue, guys. When you vary where a mail header (from:², to:, subject: line, etc.), you bypass peoples’ mail filters and of course e-mail open rates will test higher.

So many companies don’t know the limits of analytics. To those idiot business analysts that are data-driven instead of data-informed: please DIAF. ktnxbai!