I also do a lot of writing as part of my work. Others where I work ask me to edit their writing (even my son, the self described hillbilly, asks me for such advice when his friends aren't around to hear him). I am amazed at the inability of most people to spell, avoid sentence fragments, use proper grammar, and on and on and on. Surely texting is a major culprit but I know it goes beyond that because it was bad twenty years ago when I insulted a coworker who had written a sentence that simply made no sense. I'm still making up for that.
I have since stumbled across a joke that bears repeating here.
A cowboy went into the city to get some much needed information. He stopped a well dressed man and asked "Excuse me, do you know what street the library is on?" The man, a professor at the city's University, replied "Sir, I do not answer questions that end in a preposition." The cowboy smiled and said "Do you know what street the library is on, @$$hole?"
Anyhow, I have long since gotten over it all. If someone asks, I edit/correct/suggest. If they don't, I look for their message and usually find it. It still drives me up the wall ... I simply ignore it and move along. If I can't tolerate someone's mangling of the language - I pretend I didn't hear/read it. Not easy but worth the effort.
My $.02.