Hello!
This thread will describe why Add everything projects are bad for scratch.
For more information, Look at these projects:
Darkness' One on how AE Studios effect scratch

Part one:
We cannot be hypocrites so, we must not make too many Anti-Add everything studios.
How to help the movement:

• Have all of your projects removed
  Do not create AE studios.
  Do not curate AE Studios.
  If you have a AE studio, Delete it.
  

More will be added in time.

At the moment, AE studios are considered allowable under Scratch's Community Guidelines. Please do not speak out against them.

We do have a discussion about AE studios over here in Suggestions, if you want to join in.