I'm going to take the opposite of this argument, and for bonafides, I run the product team for a 1000+ person company. I'm going to assume that this thing was tested out the wazoo, both qualitatively and behind enough feature-flags and buckets to keep Optimizely in business for a year. So I have no doubt that this wasn't just a hunch on their part, but something that they meticulously tracked. If I'm wrong, definitel…
Well, Slack supported so little of Markdown that this is a moot point.