Op, I may be misunderstanding. Are you saying the blog owner used your quote in the article, or are you saying a botted comment used your name and content?
The former is fair use, the latter is outrageous.
There is of course a third possibility, and that is that you should check your Carbon Monoxide detectors.
Unfortunately that was common even before LLMs. I've ancountered at least half a dozen websites that mirror Stack Overflow questions, along with answers and comments, in a blog-like presentation.
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