I used to write to someone long ago in the mid west who knew someone in LA who did just what you're saying, they went through his trash and found notes, lyrics and drawings on paper. Definitely creepy and an invasion of privacy. I love the man and would die to meet him but not under those circumstances. I respect his privacy and those who do not are crossing the barrier into almost stalking.
My advice to Lindsey is to buy a paper shredder.