@silke: to react on specific content you can make quotes with discourse. It avoids doing dirty edits in text.
To make a quote you just need to select the text, then a small box "quote reply" will appear. Click on it and here you go. You can make more quotes once you have started a reply. Again, just select the text you want to quote and click on "quote reply" box.
I have edited "hold our list" into "to store and manage"
And I leave the discussion open for a moment. Just removing some comments, not all.