I am saying this because in past few months the forum has gone down several times. If theymos can just review the security apparatus of the forum, otherwise all good.
Down for just a short time frame is not a reason for a valid concern such as security. As shared already by @xalolex, forum is undergoing maintenance and bug fixes which is totally normal for all services online.
I’m experiencing slow loading too but only when I click the “all” button on the thread page and not when regularly opening thread. I’m not sure if the “all” button is very slow to load in general or this issue just happening to my browser only.