Steiger wrote: But I'm not going to waste people's time asking them to sign my logbook.
Definitely not.
But again... however I've had milestone dives, or epic trips / dives where I've been asked to sign a log book page and it was kind of cool, and for a few special pages I've asked some to sign that particular one as a memory.
Plus cool stickers from away trips, certain charters, etc.
Again, NONE of this says anyone HAS to keep a log book, only that if you choose to there are some fun reasons and unexpected bennies that can come from it.
One of the things I use my logs for all the time is weighting configs. I dive 100's, 119's and 130's. I've also lost a ton of bioprene. Remembering what I used, how it worked, etc has been hugely helpful as I adjust to a new reality. Are there other ways to do that? Of course. And so, do what you will, and have fun with it!