Re: warnings before opening very big directories

[Richard Stallman]

    We don't need to add help to all questions at once.  We could progress
    adding them one by one only for non-trivial cases 

We will not have any plan to add them -- neither all at once nor one
by one.

    Please tell what things are more important.

Implementing horizontal position computation using variabled-width
fonts is an important feature.

Saving with markup in additional formats is an important feature.

If you would like to work on one of those, it could lead to a real
advance in what Emacs can do.