Bill Walsh, Keeper of the Style Book at the Washington Post explains why he has dropped the hyphen in "Walmart" and in "email," and why "mic" is now a word, pronounced with a long "i" contrary to all good sense. His article is quite interesting and if you are a language maven, a must-read. See it here.
I am quite comfortable with dropping the hyphen in Walmart and in email. If fact, l had done so in my writing some time back. I dislike reaching up for the hyphen anyway, and I always have to pause to look.
Eventually, though, Mr. Walsh* gets to the issue of the singular "they." He has finally chosen to adopt this ragged and smelly urchin, though it seems somewhat against his own better judgment. I draw the line here. I shall continue to use the generic "he" in my speech and in my writing. I'm eighty-one. Laugh if you will, whippersnapper, but someone has to maintain a degree of respect for those English teachers who have gone on before. Let it be me.
If anyone is annoyed with the archaic usage, I hope he will grit his teeth and move on, which is what I shall do in future when I encounter the singular "they." If on the other hand there is one who is offended, or worse outraged by my choice, to him I say, "Get a life."
*Here Mr. Walsh, following his own style book, would have written "Walsh," dropping the honorific. Excuse the respect, Sir.