The meta you linked to has barely a hundred views. The normal go-to meta on this subject is "Reviewing low quality posts: when to delete" and its parent post. But the main topic on deletions is of course How does deleting work?, specifically this section:
What are the criteria for deletion?
For questions, a post that no longer adds anything to the site should be deleted. Basically, this includes most closed questions that cannot be improved and reopened. However, it may be beneficial to keep duplicates to aid future users in finding the canonical question.
For answers, any post that is not an answer (should be a comment, doesn't answer the question, etc.) should be deleted. Answers that are wrong or that dispense poor advice should be downvoted, not deleted.
Meanwhile, the purpose of the Low Quality queue is outlined here:
Low Quality Posts
The Low Quality Posts queue contains posts which were automatically
determined to be of low quality based on several system criteria that
generates a post quality score. It also contains posts that have been
flagged for being extremely low-quality and answers flagged for not
being proper answers. If you feel that a post is acceptable for the
site and cannot be improved further, click the Looks OK button. Keep
in mind that you can also post a comment before clicking this button.
If the post is acceptable other than a few formatting or grammar
errors, you can click the Edit button to improve the post, which has
an implied Looks OK functionality upon completion of your edits.
If the post cannot be salvaged, you have two options depending on
whether the post is a question or answer: [Close or Delete]
In practice however, things aren't that clear-cut. A lot of users seem to use Recommend Deletion for answers that do indeed answer the question and are well-written but that they happen to vehemently disagree with. On a site like ours its even less clear because you have to factor in the very real danger of bad or "incorrect" advice harming someone's career. While readers should of course use any advice given responsibly, a bad answer here could lead to a broken career rather than a broken build. Given those stakes it makes sense that we see more delete votes for such answers than you might on other sites. Deletion is a high-rep privilege and I think part of the philosophy is that such users are expected to use their best judgement in removing content that isn't appropriate for the site (culture). The queues are more like guidelines intended to identify potentially problematic posts and how such posts are handled is up to the reviewer.
That general tangent aside, for your actual question: this all seemed to have worked as designed. Answers got low scores and entered the queue. You opted to downvote but keep them. Others opted to cast delete votes. That's how these things work, we're not a hive mind.
With regards to the second answer, the author disputed the review by undeleting his answer. I've decided to confirm the deletion given the majority support for deletion and the inappropriate nature of the answer for a site like ours.
If you want to discuss a specific deletion or (community) moderation action rather than the SOP, please create a separate thread for each instance!