This is a stupid rule and I do not use it. Sometimes I write something, add a period, and then decide not to write the next sentence. The period should not be interpreted as a secret message.

Fullstops were similar 10-15 years ago. Use a period and “Why u mad at me?!”

Just recycling it. Kids who didn’t text at 2-3 years old are reinventing the wheel today.

Perhaps related, but when communicating over the radio (including via digital printing modes like RTTY) you have to declare that you're done transmitting and yield the frequency to the other party. This is because your signal may fade, appearing to the other person like you stopped transmitting. This is the purpose of the ubiquitous "over" seen in movies and TV, though in ham circles you use the more casual "go ahead" or "back to you".

I imagine a period sends the same message, but because you don't have to manage turn-taking with texts the way you do on the radio the period can be seen as redundant because they already know you're done speaking. So sending a period may seem like you're emphasizing the finality of your message.

In radio, you signal the end of a contact (QSO) with "out", but again, in ham circles you just say "73".

Is any of this relevant? I have no idea I've been up since 1 AM this morning.

The last time I was dating someone, she texted me to ask if we were still on for our date the next day. I replied with a thumbs up emoji and some additional text saying I was excited about seeing her again.

When we got together for the date, she asked if I was mad at her about something. I didn't understand, so I asked why she would think that. She explained that the thumbs up emoji is used as a passive aggressive insult now.

👍

Wha kind of stupid shit is this? Full stops in texts is passive aggressive?

How is that even done?

And how is it construed as passive aggressive? What kind of fucking idiot thought this up?