Razz, you are correct in that BB gave LE leads. In fact, BB is the one who told LE about Missy and CW. It always annoyed me that BB informed LE about CW but, apparently, never mentioned his own infidelities with one person, in particular, maybe others.
This will be marked as my own opinion bc I don't feel well, att, and won't conduct a MSM source. I began my involvement in the first few days, as many of us did. My first self-assignment was an attempt to verify BBs alibi. However, I won't purport that I've read every single post as I have a life that prevents such activities such as family visits and traveling for vacations, etc. Further, this is not the only case I'm embedded in as I have at least eleven, or many more, stored in my mind at all times. With that stated, I doubt anything huge was missed here or it would be restated over and over again in the threads.
I also agree that we may not be able to affirm who the SP is. Acknowledging such, doesn't make us care any less or force us to stop sleuthing on behalf of Missy and rooting for her Killer(s) to be caught and punished. One thing I will point out in BBs last interview, is that he never once looked at his two daughters while both of them were wringing their precious hands. I wish Peter Hyatt would conduct a SA on that interview.