Embed Notice

Opt-in means that the person needs to perform an explicit action in order to do something. Ideally it means that they do that action of their own accord, without being harassed. They do that because the software/features/whatever is exciting and/or solves a real problem they have.

Something so good you don't have to trick them into turning it on.

You know, like that time 20+ years ago when people actively sought out and downloaded Firefox because it was simply the better option.