This question arose from What are the commonly accepted guidelines specific to this site (2015)?.
User A has a strong aesthetic ideal of what posts should look like, in terms of colors, bold, proportions, etc. -- I will let that user's description speak for itself.
Unfortunately User A is a bit more isolated in this crusade for tasteful formatting than User A would probably like. And it is a big job. See an adjective meaning a question which can be answered several ways. In this thread, we see that the most glaring of the (subjectively determined) "bad" formatting was allowed to stand, while the low-hanging fruit was promptly taken care of.
In the referenced Commonly Accepted Guidelines question, I requested, "I'd appreciate it if you would avoid bringing up anything potentially controversial here."
I have noticed, however, that there seems to be some interest in discussing the topic of editing formatting, so I am posting this question here, to provide a venue for discussing precisely that.
On the one hand, those of us who appreciate precise and effective language use are more likely to have a strong aesthetic sense of what looks pleasing or jarring on the (web)page.
On the other hand, there are ELU users who would like to have personal control over their post formatting, and resist the idea of a rigid template for posts.
(I can sympathize with both sides of this issue.)
Is there a happy medium?