It isn't deleted, just invisible.
It was made that way back then because there was very little activity on the board and we didn't have an active moderator - the fonline.ru boards had way more attention for russian speaking people and we decided to just link it there. Why the re-direct is gone now, I don't know.
Anyway, I don't see a reason not to re-open it as long as enough people are there actually write something in the subforum.

Alsoplustoo, there is still this issue with moderators, but maybe Graf would be willing to oversee it.