Reading takes time and does not promise benefit – let’s face it. So you want to make your point explicitly and give people expectation as to how much time it takes to read your posts.

Like HR skimming through a pile of resumes and cover letter, readers look for numbers too because numbers stand out among all the alphabets. Remember a time when you try to read a document or post in rush, what you do when you see a number. You pay attention around the number first as you think it may be important to know. That being said, do not use English words such as one, two, three. Use Arabic letters like 1, 2, 3.

Consider the following 2 examples: (Source: http://datacenterfrontier.com/)

1. While supporting 19-inch servers, the racks are more compact around the perimeter, resulting in a narrower footprint that also contributes to higher density. This allows Intel to house 30 racks in the same amount of space previously used by 25 racks.
2. While supporting nineteen-inch servers, the racks are more compact around the perimeter, resulting in a narrower footprint that also contributes to higher density. This allows Intel to house thirty racks in the same amount of space previously used by twenty-five racks.

Which one is easier to catch the key points. I bet my money that you pick the first one. People are psychologically programmed to look for difference. In the ocean of English words, you check for numerical values first. Indeed, this is right way to go because the numerical values tell the key points that the writer wants the readers to know.