Do u agree that simple writing style of a scientific article are very important for getting the work published in a scientific journal?

Generally agreed - simple writing style might include structured format / section headings, logical flow, short sentences, simple English etc. can help writing good scientific article. However, due to word count restriction imposed by certain journals, some authors use / maximize condensed words in writing making a published article needs numerous rounds of readings in order to understand the meaning / gist.

Right dr Han.But hardly researcher follow these.

I agrree.