Brevity may be the soul of wit when it comes to texting, but punctuation is key. No one likes receiving a text with a period attached to the end, according to a new scientific study. Sure, it might be grammatically correct but people really will think you're a jerk. The study, conducted by Celia Klin and her team of researchers at the Binghamton University, found that text messages that end with a period are perceived to be less sincere/Kimberly Truond, Mashable. More here.
DFO: Gracious! I use punctuation in my texts, including ending them with a period! That makes me insincere! I'm using exclamation points because that makes me look more sincere! Thoughts?!