I too had some problems with acces to forum, was thinking that it could be beacause of increased bot traffic. It seems that everything is working well at the moment.

Why would someone DDos these forums? What could they possibly gain from doing this?
Glad to see everything working now, because I wasn't able to use the forums the past 3 hours.
As far as i have heard that this is one of the methods how hackers could gain acces to information which is stored to server..? like passwords.
Also as others have mentioned before, it could be an attemt to extort webpage owners if the server or admin cant handle the attack.