Why does moving files between components not maintain history?

Thanks. Will subscribe myself. Looks like not a lot happening on that  

Note: If there is sufficient customer demand, sometimes very old work items do get implemented, so I wouldn't let the age of a request deter you from adding a comment indicating your interest/support.

There is a workaround described in that work item, but I'll copy it here so that it is more easily available:

Currently, the only way to retain history when you move a file or folder from one component to another is to use the Team->MoveInRepository... operation, but this operation can only be used in the Eclipse client on an Eclipse project.

If you want to move an arbitrary file or folder from a "source" component to a "target" component, a workaround is to:
- create a new dummy Eclipse project in the source component
- move the file/folder into that dummy Eclipse project
- use MoveInRepository to move the dummy Eclipse project to the target component
- move the file/folder to where you really wanted it to go in the target component, and then
- delete the dummy Eclipse project from the target component.

A more detailed description of this workaround:
- create a dummy project and share it into your component.
- do a regular move of the things you want to move into that dummy project
- check-in your changes and close (or complete) the change sets.
- use the Team->MoveInRepository to move the dummy project to the destination component
- move the files/directories to where you really want them to go within the destination component.
- check-in your changes
- do a "Team->RemoveInRepository (or 'Delete From Repository')" on the (now empty) dummy project (unless you want to just keep it around for a subsequent move)

The Team->Move in Repository is only at the component level and not at the file/folder level inside the components.