...that wasn’t the aim of why engagement Challenge was introduced.

Haha, welcome to the club of good observers.... ;-)
Believe me, it's not very cozy in there - you have to shake your head so often and sometimes spit out in disgust.
Well, as long as the majority of users like the way things are going (of course only as long as they profit from it themselves...) hardly anything will change. And if it continues to those who are always looking for the conversation, too exhausting, the above club crumbles and poor behavior will continue to reign...
What must not be forgotten: We are the Steem, only we have the power to change something together. This includes the self-reflection of each individual user!