Yep, I'll lock this thread now.
Also, it appears our version of the forum software doesn't even support the feature. When the final version of SMF 2.0 is released (currently it is release candidate stage), it would become an option.
Even then, I think the drawbacks outweigh the positives. I'm aware that the post is shown as a stub--so you know there is a missing post and can read it easily--but even still, there is the potential for drama and problems and I don't see blocking individual users as important enough.
Since I can't say that we will never enable this feature, if somebody wants to discuss it in the future, please wait 6 months before starting a new thread on it (there is also the option of contacting an administrator privately if you want to discuss it sooner, though it's unlikely we'll change our mind in the near future).