quick question: Can I be sure that the service will not index my confidential site visits (banking, creditcards, etc.) and/or capture information sent to those sites (usernames, passwords, etc.)?

On the download page it says that I grant your plugin "Your data on all websites." That couldn't sound less appealing.

If there is a way to bypass the collection and indexing of certain sites (I'm assuming, too, that it is stored and indexed on your servers), then you might want to explain how that happens from a link on your front page.