Forum posting
From MoodleDocs
Forum posting
The default content of Subject is usually 're: <the name of the 'parent' post>'. You can change it though.
There are several tips concerning careful reading, writing and asking you might consider worth following - you will find them on the left-hand side of the Message field.
When writing text in Moodle there are several formats you can choose to produce your text, depending on your expertise and the type of browser you are using. Please refer to Formatting text for further information.