I still think this is an excellent list of guidelines, and you shouldn't change this original draft as it's very well written, and doesn't appear to have any grammar mistakes that can confuse readers.
However, it's definitely not perfect: @Jamal already pointed out potential issues with totally separating arguments from the person speaking, but here's a couple of other things I think should be scrutinized as well:
Try to nail the definitions down as soon as possible. — Philosophim
This is actually poor form in a lot of contexts; all writers of books other than dictionaries and text books know that they rely on the readers to have a partially-shared understanding of the words used in the book already. The meanings/understandings that the readers already possess are just as valuable as your desire to create meaning or coin new terms.
One thing I realized in the process of writing my first book was that writing is about a lot more than the word choices: it's also about structure and psychology. You structure your ideas to get your ideas across effectively (at least this is how you look at it for a non-fiction genre like philosophy), without the confusion...and minimized misinterpretation (but you can't get rid of this entirely, as some of the best writers are misinterpreted), and the psychology is needed for trying to figure out how people will respond to your text before you hit the "send" button.
However, the psychology aspect is probably the least important part of my narrative, because part of the joy of writing is in testing how publishers and casual readers of your work will receive it.
Do not waste time on philosophical reading that has poor language, definitions, or easily disproven premises. I am amazed at the amount of people who will spend hours analyzing a piece of work that is invalidated within the first opening chapter of the discussion. — Philosophim
Sure, there are some sources you should not trust for information based on snap judgements, but the way you phrase it doesn't work as a guideline...at least not for me. For example, who can really agree on examples of "poor language"? It seems rather loaded...sometimes people understand statements spoken with bad grammar better than they understand statements made with good grammar. In colloquial speech, people tend to use poor grammar and break the teacher's rules all the time. If you break the official rules of language in a clever way, sometimes people commend the creativity.
Coining terms and violating grammar rules are both a process of creating new meanings. If you can't create your own meaning, then I feel sorry for you, because this is the best power that spoken words and writing can have.
Also, "proof" tends to be over-rated, and proving superiority to others doesn't have any value within itself besides the thrill of winning. Superiority doesn't hold any water in the long run, because if you do manage to impress someone so that they stick around, then in the future they'll figure out some way to best/humiliate you in front of others as well. The "easily disproven" premise is too subjective to really illuminate problems with a text. For example, me and @javra discussed books which are written for the sole intent of making money, and mostly do not have lasting philosophical teachings. One example they gave was a self-help book called "If the Buddha Dated: A Handbook for Finding Love on a Spiritual Path".
When i finally found a free copy of the book to download, I read through the introductory material: it was regurgitated nonsense on "having compassion", and i thought it was boring and uninteresting. I asked myself why she would be writing buddhist romantic advice when "the Buddha" was an ascetic, and probably wouldn't have dated anyone anyways, and as I flipped through trying to find out what a "buddha date" look like, I got my previous suspicions thrown back at me from the writer herself:
Of course, the Buddha didn’t date. No one really dated in his
time. In that culture, as in many others, it would have been
considered barbarian to have young men and women chase
after each other, left completely on their own to find mates.
But is this proof that "the Buddha" never went on a date? Is it even proof that people from that period thought about dating in a different way?
Absolutely not. No, nothing has been proven here, but it doesn't even matter, as the purpose of self-help books seems to be similar to the purpose of scams. Self-help books are all about making vague promises to the reader and not making good on the promise, whereas scams tend to be about making specific promises to the mark, but still not making good on the promise.
Also, ask yourself this: so if "the Buddha" really lived in a time period where people couldn't chase after each other or find mates, then why did he comment so much on the passions, and proper/improper sexual conduct? Even modern buddhists tend to discuss sexuality in moral terms, so if people had absolutely no sexual agency in this time period, as the writer seems to imply, then how could her assertion about history have any truth to it? I don't need any proof to understand this as a statement not worth considering, just a little bit of logical deduction and firsthand experience with human sexual behavior and biases. It seems obvious that people speaking in sanskrit and pali did not use the word "date" as those languages are radically different from english, ill giver her that much...but it's still possible that ancient culture had some version of courtship described with different words.
Anyways, i digress: the truth is that proof in philosophy doesn't have much relevance, it has more relevance in science, mathematics, and the court system. It's even over-rated in the court system: sometimes the police make their own evidence by threatening suspects into making incriminating statements or confessing..."proof" is completely subject to fabrication and denial.