Size does matter, but quality matters more. When you’re writing a blog post especially for search engine optimization, remember that length is secondary to the quality of your post, the structure of the article, its readability, and its engagement level. In other words, focus on how long people actually spend on your post checking out images, video, or eye-catching lists and stats. That being said, it pays to heed the fact that people like reading long form content. If you can regularly hit 1,000-1,500 words, along with occasional 2,500 words posts, I believe your overall results will be better.