Figured I'd post my theory on this that is totally probably wrong but here I go.

Due to the lack of a head administrator, the site actually wasn't shut down, but more so the system fell in on itself due to pretty much an overwhelming amount of what we can see to be spambots and spam posts. Posts were major on it, and the forum couldn't load unless you always had it open 24/7/365. It probably is permanent if the spambots are taken out of the system, and the site's coding structure and well, whatever you have already said Hellsing has worked itself back to working.

Anyways, I'm just going to sit here with the rest of my Pokestadium members knowing we will never get our original site back /cries