help('NAMESPACES') or any other long help is shows in a pager.  That's great.  It's a bit surprising however that the text shown in the pager doesn't include the "Related help topics: ..." line, which is shown when you leave the pager.

There is practical benefit to see the related topics after you exited the pager - that's when you have the chance to follow these other topics.  But I think it should be duplicated inside the pager as well.