The register and dialect you use matter. Your word choices matter. Whether you use semi-colons or instead write two separate sentences matters. But it is a stylistic choice, not a grammatical one, and it should be recognized (and criticized) as such.
I like to use semi-colons to link related sentences; other people do not, and argue that this makes it difficult to follow what I’m writing. That is a solid argument. We can have a lovely debate on whether semi-colons are more elegant and more readable than dividing the sentence into two little sentences. However, this debate can only take place if both sides agree that their opinion is more of a guideline than an actual rule.
As the author, Hortensio, goes on, one’s goals (and I would argue intentions) matter as well. Do I want to persuade? Do I want to offend? Do I want to do both? Do I want to comes across as pithy? Ironic? Academic? All of these things matter, and they all require a writer to pay attention to his audience. Writing with only one’s self in mind will likely result in poor writing. Or at least writing no one wishes to read.
Ironically, I have no good way to transition into my next point, so here it is: In the comment section of the above linked post is a discussion on the use of “they”, “s/he”, “one”, and the like. It is only briefly touched upon, but I think the gist is this: do we want to be socially conscious or do we want to be undistracting? That is, neutralizing gendered terms in order to not arbitrarily favor men has been a popular trend in writing for quite some time. However, one result of this trend has been to use the grammatically abhorrent “they” or the aesthetically grotesque “he or she”. This tends to distract because it deviates from the vast majority of writings; I see it and tend to think the writer is making a point to be socially aware, leading me to assume a lack of genuineness. The other option is to consistently use “she” or consistently use “he”. This is my personal preference. I want people to read over my pronouns as if there really exists a gender neutral term in English. I can appreciate the idea behind exposing the lack of awareness everyone has over these sort of issues, but I’m not going to sacrifice the quality of my writing for it.
Now all I need to do is make another 500 posts about language and maybe people will believe me that I really do care about writing.