[lucb1e]

> you are not required to explain them to the user (although personally I'd say it's a good practice).

Nitpick: you are actually required to explain it, but not by shoving a banner in their face. You can explain it in the privacy policy, to be retrieved on demand by the user themselves.

See also GordonS' comment elsewhere in this thread, who is correct about the need for a privacy policy (and I posted a more elaborate comment with more info below it): https://news.ycombinator.com/item?id=25305722

[d1sxeyes]

Thank you, that was an interesting read. I'll bear this in mind going forwards.