I remember seeing NH and BRB and TY in the chat box early on in my poker playing on this site. Great shorthand options! Wish I could use those in face-to-face conversations. All the niceties, less time spent. LOL
Some people make long strings of these: “N2CU” and some people use “YW” when they are thanked for a TY. What do you use? Appreciate? Wish would go away? etc.