I find it funny how everyone focuses on this line because out of context it sounds "evil", even though it's far from the focus or what's shady about the memo itself. That line just implies that "the tool" can be used for bad stuff, but then there's also:

"Maybe someone finds love. Maybe it even saves the life of someone on the brink of suicide."

And, just like postal mail, phones, SMS, newspapers, word of mouth, radio, etc. "the tool" can be (and is probably most often) used for good. What's surprising about this?

What's actually shady about the memo is not how the tool can be used because of course it can be used for both bad and good things just like any other tool (you can kill a man with a baby bottle if you know what you're doing).

What's shady is that it's claiming the ultimate goal, above anything else, is to put the tool in as many's people's hands as possible. And they'll do anything that's possible to do so, even questionable stuff. This memo is about their shady growth practices, not what the platform is used for.

Could say the same thing about iPhone encryption...

Why is this getting downvoted? Phones have been used as tools by bad actors and criminals too, that's a fact.