The promotion in the chat, needs to be upgrdaed as it has like 1 quadrillion messages per minute...

One of the above comments has made a right statement. There are other ways like ding and so on.

Maybe it would be a good idea, to make an introduction manual.
What I mean by this is, to gather all the main inoframtion about how to promote a post, and how steem works.
This manual would be avaliable on registration, somewhere on the users page (like a simple help - but more interactive)

This would solve 3 promblems.
1 - It would stop the enormous amount of posts about "how to transfer money from steem" "how to upvote" "how to drink coffee while on steem" and so on
2 - It would help to stop with the spam you are talking about
3 - Promote original content