Pack is based on l2j and its development started on a really old server (L2Essiel) that members from mxc had. The development kept on going until today.
Hope you are satisfied, hater.
All staff members are adults, so your argument is incorrect.
Server wasn't DDoSed, but its MySQL was flooded due to many unclosed database connections. This could be either made by server itself (although there's a timer for each opened connection) or player made (on purpose, or by accident). Anyway, better loggin was added and next time, if it ever occurs again, we'll know exactly why and how it happened.
I sincerely hope i answered all your questions.