Envato should give us suggestions on what to create

Back that time at 2007/2009, they were actually giving the information what they needed/what they wanted but there wasn’t so much authors then.

You will get that experience after sometime if you keep working on the projects but the key is the unique design and features. No one is going to share their good ideas for the public - it would cause the same issue. After a month, everyone would be doing the same project and they will have to reject the items again - this time, they will have to draw a border somewhere to prevent similar items.