What am I supposed to be looking at? Lots of VLF data, but I see nothing that tells me anything useful.
As I already said, if you check BoL, truncateonly is an option that is ONLY valid for shrinking data files, it is completely ignored when shrinking a log. Hence, since it is not valid for shrinking log files, there is no grounds at all for assuming it does anything special when shrinking a log file as the option is ignored.
It is trivially easy to show that it does not break the log chain. Take a DB in full recovery. Take a log backup. Shrink the log. Take another log backup. If the log chain was broken, the second log backup would fail. It does not.
As for the rest of the criticism, it's true, even though it may be blunt. There are so many technical errors in the article that it is harmful to anyone reading. I strongly suggest you consider getting a peer review/tech edit if you intend to re-submit it.
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