Add Warning Comment on wp-includes/functions.php

[ounziw]

WordPress has wp-includes/functions.php. WP's theme also has a file named functions.php

Some people may edit wp-includes/functions.php, willing to edit his/her theme.

WARNING message on top of the wp-includes/functions.php will reduce such mistakes.

[valendesigns]

I think this is too much of an edge case and really ins't needed. If someone is directly editing WP core files they don't know what they're doing to begin with. As well, if we're going to add message like this to functions.php, then shouldn't we add it to index.php, or perhaps even taxonomy.php as those are both file names used in themes? Where do we logically stop, because the rabbit hole goes deep?