Tricky,
your "...every sentence should be in paragraph by itself..." is false.
Every sentence shouldn't be in a paragraph by itself, but can be if I want it.
In my case every sentence is in a paragraph by itself for spacing and clarity.
So that's an option that I use to help easy reading.
You can ignore my posts too, if you don't like that my sentences are in paragraphs by themselves.
As for your labeling me within language experts, you got that wrong too.
Writing well in one's native language is at the level of high school, grade 10.
I specifically wrote this already, didn't I?
Meeting the standards of grade 10 in high school shouldn't make one a language expert.
Just normal.
Who can't write well in one's native language and is past the age of being in high school, grade 10, is a slob.
Writing well in a foreign language -like I do- it's at a higher level than high school, grade 10.
My expertise is in science and in the sport of competitive swimming.