If you followed the link, you should've seen that I wrote "OP is an engineer and I guess she has been trained to always do it", so I thought it would be all you need to understand "why", isn't it?

But if not, to elaborate - The likely explanation here is: Engineers are trained to do it in their jobs, and for someone from an engineering background, it's possible to "make this choice" automatically without even realizing it, and for them, it's totally a natural number without any readability issue. In the same sense, if you see a software developer who expresses a number in the power of 2 even when it's unnecessary, it may not be the most appropriate decision, but this type of behavior is totally understandable. You don't have to be a rocket scientist to see why.