I've noticed that N. Americans in general do not use log book stamps, unless you're a shop & it's your shop stamp. & even then many N. American shops don't have a dedicated logbook stamp.

On many international dive trips, the DMs, Instructors and fellow passengers all had their own dive stamps and there usually was a "logbook hour" where you would all hang out and sign each other's logbooks and buy T-shirts Some stamps were very memorable (a DM had a stamp with his unique tattoo on it) while others were just a stamp.

I personally like logbook stamps because it's a chance to create memories for our fellow divers (esp on vacations). But my usual dive buddy is a closet dive stamp user & only brings it out on vacations & almost only for our foreign friends

So why don't many N. American's use log book stamps?