There are two verbs in your example, so it’s simply not a relevant example since the second verb is forming a separate sentence. It’s just connected with a comma in order to inform the reader that it is reusing the context of the previous sentence. In this specific example, that really makes it a broken sentence fragment, but it is often acceptable if it is being done poetically, which it arguably is there.
I phrased my previous comment carefully. The verb is never isolated from the rest of the sentence by a comma. “Posts” is the complete sentence; it just has an implicit subject and object.
It’s possible there are nuanced counterexamples somewhere that I’m somehow overlooking, but none of them are relevant to whether putting a comma between “laptop” and “returns” would make the title clearer.
But, if you’d like to try again with only a single verb…
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"Rule of thumb: a comma indicates a pause in speech." [1]
[1] https://site.uit.no/english/punctuation/rules-for-comma-usag...
The real, specific rules that are listed after also don’t contradict anything I’ve said, as far as I can see. Can you please point to the specific rule on that page that says a comma would be useful here?
A comma does not fix this title.
I’m not claiming to be the single best person in the world at English grammar, but I have tried my best to learn a thing or two about it over the years. I have also tried to clearly explain the relevant grammar to the best of my ability. I have apparently failed to explain it well enough, so I’m done here, since trying more won’t make a difference for such an irrelevant diversion from the main topic.
You're going to upset people if you don't consider their opinions.
Too nuanced and pedantic, understood.
