In reply to the above, yes you do get credits for saying Hello.
So that you can see how easy it is to post a message on Knowledge Organisers, just REPLY to this post with a "Hello from xxxx".
The REPLY button is at the top and bottom of the page. (On mobile the reply button is a left pointing arrow.)
Any reply on Knowledge Organisers earns you 2 credits, which you can then use for downloads.
After you have replied, check your credit total and you will see it has increased by 2.
Give it a try.Then have a go at contributing to other discussions and earn credits to spend on downloads.Other ways you can earn credits