Re: In the UK...
"My brother (state-side), states things like 'Ping me' in his emails. That feels me with distain too and I'm not sure why, it just does."
Because it's stupid?
Ask him his IP address and then ping it, and then give him the results. Do that consistently and he'll learn not to use that idiotic phrase with you. Emailing is not pinging. Pinging is pinging.
(I presume the cited sentence is, uh, the way it is for effect.)