Well why doesn't Badspot bring them back since Kalphiter is gone.
Because there's no harm in the ability to lock/edit in Drama being gone.
The change was made in response to Kalphiter doing it excessively, but he was not the first to do it. And if the ability returned he wouldn't be the last.
While not always effective the limits should make people think long and hard before posting there, as you can't take back what you say.
Obviously not everyone does, and it's not uncommon that people don't know. This could be mitigated with a sticky reminding people of Rule 6 (Think before you post) and pointing out that you can't edit in drama.