Urgent : When there are many unicode words node shows up as just blank rendering the site useless

If you do hit the edit tab you will see unicode characters - if you reduce the number of chars to around 2000 node will display fine. BUT there is no such admin or any option that sets this behavior. There is no MAX words limit etc.

If the content is not shown the site ( or webpages thereof ) is rendered useless and broken.
It affects Drupal 5x and 6x ( confirmed ) and 7x ( need more tests )
If a patch is made it needs a backporting to 6x at least.

A possible solution is suggested here http://drupal.org/node/538032
but there needs to be an admin setting on max possible words per post then.
There needs to be a very distinct note on possible word limit at the time of node submission to the user, otherwise users will be confused as to what is happening.

The settings suggested in the above link are not available in settings.php by default so I do not know whether settings.php is supposed to be hacked.