Uh oh, grammar* fight on Twitter.

[underpants]

Now they done gone and did it.

*or is it punctuation?

Link to tweet

?s=21

[ProfessorGAC]

1. I'd Have Made It Two Sentences

At least a ";" to separate two independent clauses.

[USAFRetired_Liberal]

2. Could have used a semicolon

[Doc Sportello]

5. Oops

My post came just after yours. And I agree. I probably would have used a semicolon but I tend to overuse them.

[Hassin Bin Sober]

16. Shouldn't that have been

I probably would have used a semicolon; I tend to overuse them.

[Doc Sportello]

19. Ha!

Well played! I thought about that and then thought 'oh heck enough with them for today'.

[Irish_Dem]

7. I was going to post that but didn't want to cause even more of a brouhaha.

[Doc Sportello]

3. Think a semicolon would also work; two independent clauses that are closely related in thought

[Renew Deal]

4. Is this a well crafted joke?

[Irish_Dem]

9. It almost looks that way, doesn't it?

Really funny one I think.

[hlthe2b]

6. Perhaps it is just a typo.

That said, I'd go with David Corn's editing advice any day.

[Irish_Dem]

8. It is a punctuation fight.

Grammar: The way we put words together to form meaning.

Punctuation: The symbols that enhance and add clarity to sentences.

[Cuthbert Allgood]

10. Seems a little of both since the needed punctuation here

is called for because of the independent clauses on either side of the comma. If there weren't independent clauses (clearly a grammar concern), then the punctuation need changes.

Some punctuation is certainly independent of grammar and goes to clarity (Oxford comma debate), but some punctuation is needed because of grammar concerns.

[underpants]

12. Yeah! You tell em!

[Irish_Dem]

13. The critic of the sentence was pointing to the punctuation.

The punctuation issue did not affect meaning, so I ruled out on grammar as the argument.

And yes the punctuation is incorrect because of the two independent clauses.
But a punctuation change did not affect meaning (grammar.)

However you are right in that sometimes punctuation really does change meaning.

[underpants]

11. You aren't going to take that from Cuthbert

are you?

[Irish_Dem]

14. Hell No! I saw red when he said it was a half grammar/half punctuation fight.

I gave him a piece of my mind.

Stay tuned. It might get ugly here.

[underpants]

15. Hell yeah! Go get em!!!

[Irish_Dem]

18. Better be careful, you might just get hit with some flying punctuation points or a semi-colon.

Those leave bruises.

[taxi]

17. An essential part of language exists

[Leith]

20. I'm just glad that Ms Jong-Fast knows how to form plurals properly

Not an apostrophe in sight. Good on her.

[marie999]

21. I posted earlier,

Should have left out the comma.