[meowface]

This post is confusing to me. It's titled "Or, a case for using punctuation in Slack", and then spends almost the rest of the post discussing the issue with acronyms/initialisms/shorthand.

I totally agree about shorthand. It can be unnecessarily ambiguous. But punctuation isn't related to acronyms, I don't think? As others have pointed out, punctuation over instant-messaging services can add meaning you don't intend. I generally don't capitalize the first letter of sentences or end messages with periods in IM applications.

If they had just named it "A case for avoiding use of shorthand in Slack", I'd 100% agree.