Gervase Markham wrote on 25.10.2015 15:53:
On 24/10/15 02:30, Alex Davis wrote:
Why do we need to ping every time the app opens and we don't just rely
on install numbers? We know for a fact that not all installs are equal.
If we only optimize for installs, we may ignore that cheaper installs
via 45-65 year olds actually have a really bad churn rate, and that
despite being more expensive per install, 18-25 years retain much
better. In the end, we don't want to optimize ads to drive installs, we
want to optimize our spending around acquiring more Firefox users.
Why do we need data this detailed in order to get a good enough idea of
churn rates? What if e.g. we pinged on the first open every week; if
someone didn't open the app that week, no ping. The distance through the
week could give us a bit of a proxy for frequency of usage. I think we
could get a good idea of which channels were better, without tracking
every app open by the user.
We already have this information
* From update requests and addon block queries
* Metrics / FHS
There's no need to add another ping.
In general, I think we should always be thinking "what's the minimum
amount of data I need to collect to get a good-enough answer to my
question".
Yes, that's the right question to ask.
On top of that, users have a *right* to their data and not to be
tracked. Even if you have useful questions you want answered, you might
still not get them.
Ben
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