As a developer it is extremely painful to browse the forum when it quite literally gets vandalized by immature forum users.
When Roblox is down, the forum should either be completely locked down or put on a heavy slow-mode state. Roblox already puts site-wide banners on the forum when outages occur, so there should be no excuse for someone to be oblivious to the situation. The amount of misinformation that spreads during outages is extremely harmful. Flagging isn’t helping here either – the vandalism outnumbers moderation resources. I also won’t be surprised if the flags have backlogged, especially if some staff couldn’t log into their accounts because of the outage, therefore being less of them to help out.
There shouldn’t be any downsides, as Roblox engineers already have tools so they can be made aware of any outages.
If Roblox did this, this would help everyone including forum moderation, as there would be less vandalism on the forum.