While not an English major, I've always tried to communicate correctly, even in text messages. I'll write full sentences and avoid short hand notation. For example, it irks me when someone writes "TY" instead of "Thank You". And, I absolutely cringe when I see grammatical errors in published news articles.
That being said, I actually heard a pretty compelling argument a few weeks ago on a Podcast about the evolution of communication and language. The comparison was made between letters home from rank and file soldiers during the Civil War and soldiers stationed overseas today. Those Civil War letters were verbose and descriptive and full of emotion. Why? Because letters to a wife or mother were sent home once a month, and there was no other way to convey those thoughts and visualizations. And, they had ample downtime in the evenings with minimal other distractions. They took their time and ensured that what was on paper gave a deep and detailed perspective.
Compare that to a soldier communicating home with a loved one today. It can be a FaceTime call every evening, maybe a few texts during the day. The wife or mother on the other end can see facial expressions. Pictures and videos are sent. Quick texts provide updates.
So, the argument was made that it's acceptable and natural to get away from formalities in written communication. The intent behind communication is to effectively convey information. If that's being accomplished by a picture, an emoji or shorthand, then it's actually progress in the evolution of communication. Shortly after hearing that Podcast, one of my managers sent me a text that we were awarded a job we'd bid on several months ago. I replied with a "happy dance" GIF. In a sense, that GIF communicated more effectively my sentiments about that achievement more appropriately than any written word could have done. It's interesting to take a step back and try to understand how rapidly that evolution of communication is unfolding.