I think making short content on blog is batter than making big big articles. That such a big articles also take time to write and also take time to fill the blog. I means short content, the templates and wallpaper etc. That not required more paragraphs to post and these also fill the blog very early. What are other types of short contents? Please share your ideas.
Yes!!! You're correct. Short articles are always advisable. Other short articles include simple solutions for complex problems. e.g. Acne Home remedies.
It all depends on the complexity of your topic. Acne articles for teenagers can be shorter but if your niche is acne research teams then you'll need longer, more scientific content. No hard and fast rule except that perhaps shorter = spammier (in my experience).