[Xenon]

As already said, it's because of privacy issues.

A user who posts within the supportthread, realises, that when a security flaw is found, he could be a possible victim, but if he does not post then he has to be sure he is "safe".
Of course we could just generate a list just for authors, but there could always be a black sheep there as well.

I can understand both sides, i sometimes miss that feature myself, but as said, the disadvantages are bigger than the fun factor, so we won't add it again.