What exactly does “more detailed” mean at change.org?

It's very difficult to upload my question here without gutefrage taking it down again for self-promotion. I've already tried twice, so I won't explain what my petition is about. However, I uploaded a petition on change.org, and the description has 1,462 characters, or 264 words…

Nevertheless, change.org shows me that I get better results if my description is more detailed.

,, Formulate your description in more detail.

Add a personal story as well as relevant facts and statistical data.”

Since I want the best results for my petition, I wonder what this means.

Thanks