My biggest pet peeve is people that use SMS talk in email. "u" "r" "wif"
AAAAAAAAAAHHHHH! Am I the last person on the planet to still use complete sentences?
You are not- I am always checking grammer and sentance structure. Of course I also married an English Teacher so I have my very own editor for all of my important e-mails and submissions.
I get a lot of shortened replies to e-mails when it also has the disclaimer "Sent from my iPhone" or something similar. I feel like the fact that that disclaimer is there is giving us the excuses to use shorthand. When I had e-mail on my phone (something I got rid of for many reasons- a whole different thread!) I found it a pain to format proper responses, but would try my best to have professional looking format and never shortened words or used 'textspeak'.
I think that the issue of response time addressed in the article is something that I always take issue with. Perhaps because I have had e-mail for a good portion of my life, and was always excited to hear "you've got mail!", I am more prone to check my e-mail and respond right away. It does annoy me when I don't hear back from someone for a few days. I was actually taken aback the other day when a set designer I was working with at the local high school apologised in person for 'all those e-mails I sent you today'. We had sent maybe 6 e-mails alltogether to work through some scheduling issues. I didn't think that it was a lot of e-mails at all... I guess it is all perception.