I've found tooltips displayed by Intellisense when keying method name as very usefull but I can see only summary and params info - no returns comments
Eg - I can not see below comment:
<returns> Enriched object</returns>
Is it a way to make it visible?
EDIT
Maybe you know the tool replacing standard Intellisense and displaying returns section
Intellisense cannot display RETURNS statement indeed.
I have found ReSharper can do that!
You can only see this in the compiled xml help. Intellisense only displays the method description. So it's a best practice to describe your method as "Returns xyz ...".