I know about ++, but I tend to use += 1 for faster and easier readability. It's just my preference. Some people may process ++ better than += 1, but I prefer += 1.
If you are referring to me, and just clicked Reply on the wrong post, then I will say it again to save you the trouble of reading my previous post again.
It is user-preference. I program how I am comfortable programming. Up until lately when I started getting into an "organization phase", I used ++. Since then, however, I have been using += for the sake of my own readability.
If an explanation is needed for any of this, just let me know what is confusing you.