I understand this, just wanted to say that it something is encrypted there should be a key. If key is stored locally malware can read it and do whatever it needs.
Anyway I am not sure if developers read this forum. Opera can't change default search engines, can't hibernate tabs after eliminating extended-lazy-session-loading flag (I am aware of "Tab Suspender (memory saver)" extension, but it has major drawback causing lost tabs), can't show sidebar only for speed dial. 2 of 3 issues raised after update.