I’m honestly shocked there are HN users who are unaware of the tone implications.
Period. Full Stop. Point. Whatever It’s Called, It’s Going Out of Style (2016): https://www.nytimes.com/2016/06/10/world/europe/period-full-...
The Period Is Pissed (2013): https://newrepublic.com/article/115726/period-our-simplest-p...
Stop. Using. Periods. Period. (2016): https://www.washingtonpost.com/news/wonk/wp/2016/06/13/stop-...
The Secret Emotional Lives of 5 Punctuation Marks (2014): https://www.mentalfloss.com/article/59060/secret-emotional-l...
Why Does Using a Period in a Text Message Make You Sound Angry or Insincere? (2016): https://theconversation.com/why-does-using-a-period-in-a-tex...
Yes. A Study Shows that Ending Your Texts with a Period Makes You Sound Like an Asshole (2016): https://www.mic.com/articles/130042/ending-your-texts-with-a...