So ... no more donations to #Joplin from me. Opt in or not does not matter; a feature that is not fully removable (by uninstalling an add-on for example).
My notes must not be scanned / harvested by an AI - voluntarily or accidental because of a "bug" ever.
Unfortunately I have no alternative software options, so I have to move to text-editor .md files.
It's pure #enshittification and I have no words how much I hate this #aislop #privacy invasive behavior.