[YeBanKo]

Great idea, but it seems like Facebook for your personal items. Brief look at the privacy policy:

  However, if necessary, we may retain your personal information for our compliance with a legal, accounting, or reporting obligation or for archiving purposes in the public interest, scientific, or historical research purposes or statistical purposes.
  ...
  We may disclose personal information to:
  ...
  * our employees, contractors, and/or related entities
  * our existing or potential agents or business partners
  * third parties to collect and process data
  ...

No, thank you.

[chillingeffect]

In the old days this would be a pc "program" on a person's home computer and all this data sharing concern moot. Why this database madness? All that's needed is a simple encrypted cloud backup. Harrumph.

[legalcorrection]

I think you're reading too much into that. All that means is that they can use other services to process your data, e.g. putting your data in an AWS managed database.