Why would anybody

take the effort to think first and act than?

Because that person could be considerate.

Wiki is about two things:

  • Cooperation and
  • organizing information.

When it looks like this:

 

that information (if it is information at all) is not organized, it is simply stacked, piled up. There are 'titles' in the list like:

  • Hello!
  • Thanks :-)
  • eMail
  • Question
  • Reminder
  • Unseen
  • Translation
  • Info
  • Invitation
  • But it is never too late
  • New confirmation

Some of those talk page indexes are a nearly comprehensive list of cognitive shortcomings.

Some amongst them are