It is your log book for your use. I have only had a couple dive ops ask to see me log book (this was for deep/wreck dives). I like to get the dive op, park, shop, etc. to stamp my log book. It is fun to look back and remember the dives. You don't have to have the stamp for a memory but I like it anyway. That said, I don't have stamps on all my dives but I try to get one.
I do have my dive buddy sign the bottom and if a guided dive or training dive I get the DM/Trainer to sign also.
I am the same way. But..your log is up to you.
I get the sigs and the stamps if I can. I review em if I need prior weight guidelines. I use lots O' different wetsuits and combinations.
But some of my best dive buds don't bother. I use the SDI/Padi log books. I think I have six of em.
My buds think I am somewhat crazy.
In 14 years I don't think anyone has asked to review my log books.