[oblio]

I don't have any solid sources backing what I'm saying right now, but based on what I've read and what I know about sales and marketing, the difference between opt-in and opt-out is huge (much bigger than the 3 letter difference :) ).

With opt-in you only reach something like 10% of your users, if you're like, while opt-out is the exact opposite, you reach 80-90%.

This creates massive financial incentives to be sneaky and push opt-out.

And every time this happens for products where there's decent competition, the people doing this lose a chunk of their users...