Deprecated forums should have sticky notes

If the purpose with the deprecated forums is to shift the activity focus elsewhere, I think that each such forum should have its own sticky post about the deprecated status, preferably with pointers to the new arenas.

It is not enough that (even just some of them) they have a quite anonymous link below the forum title on the forum group index page. Many of the new replies come from users having found the parent posts through search or other direct references, so they might not be aware of the deprecated status and where the Drupal.org forum maintainers would want them to post (instead).

Ideally, that message should also appear emphasized and colored right above the subject field when posting new content or replies to existing content in those forums.

(This is a good example on the need for features related to closing forums, which Drupal currently lacks.)