I think I get what you're saying.

I work in a company with a very young workforce, and the few people who do put periods on the end of their sentences and say "thanks" are out-of-the-ordinary. Usually for us, it goes:

Hey {first name},
[Request Here with Emojis Strewn Throughout]. Thank you!
[Signature line]

I think the few "Thanks" we do have are just from an older generation and / or members of HR (whom I am convinced have no soul at all)