privacy of photos??

Hello,

 I use photoshop, lightroom, creative cloud, etc. and had questions regarding the privacy of these products.

1) Once I delete a photo does adobe keep a backup copy of my deleted photo or do they erase it from their servers?

2) I realize that maching learning involves adobe scanning my photos. I read through the privacy policies related to this and they did not answer the following questions:

         2.1) The privacy policies state that adobe will not re-create my photo (which is something), but does              this mean that adobe can in fact re-create the photo even if they choose not to (i.e., is that possible?)?

         2.2) how long does the machine learning process keep the actual scan of my photo? That is, how long is my photo scan kept (in relation to the above how long is it possible for adobe to re-create my photo should the company decide to do it for some reason - though i realize they say they wont).

        2.3) The privacy policy uses the word "confidential" for photos which is not particulary comforting. I would much prefer to see the word "anonymous." Are my photos that are scanned at least anonymous, as in they can not be linked to the adobe ID/person? (though i realize if you are in the photo then there is some inherent linking possible)

        2.4) How far back has this maching learning been going on? I ask this becasue i'd like to know how far back my photos are not secure (month/year is fine).