Congratulations for your article!
I've been in multiple situations where I had to choose between helping a person in need even if a lot of people were around me, or just ignore him or her, and mind my own business.
I helped some of them, even tho a lot of people were looking at me like I was a weird. I felt awesome for doing that, and mostly, I felt proud of myself.
I also ignored others because of the bystander effect you talk about. Everyone was around the people in need of assistance, and I just couldn't make myself go there and do something. I never felt more ashamed and more regret that in those situations.
All we need to do is take action when something like this happens, and forget about the crowd around us. The feeling you have when you ignore everything else and you help another person for no reason, it's something that we should all experience more.
Congratulations again for your article, I hope more people read it and more people become aware of this! :)