As pichlo already stated it is not a matter of quantity of data that is revealed. If it was my free choice to join a Jolla Ltd. managed user community (but here we are talking about access to software repos) I would probably join voluntarily as I joined this forum (and many other forums as well).

The problem is that every Jolla user is forced into this otherwise his phone is not so "smart" at all. This is a really bad practice Apple started years ago, Google adopted this or to be more exact they had the account first and then they came up with the device and with Windows 8 Microsoft is catching up.

Maybe you got used to this kind of practice and meanwhile it seems natural to you. But I think this is a very bad development.

You may argue Jolla Ltd. is a small engineering company and not a big data leech like Google, Apple and Microsoft. However, the same applied to Whatsapp or Mojang. Things may change.

Jolla Ltd. may argue "take it or leave it". But then, why should I take a Jolla and not a CyanogenMod device (e.g. OnePlus One or Geeksphone) or keep on using my N900 until the Neo900 is available?