It is slow, CU is completely down, GP is sluggish, Disqus is going bonkers. So yes the DOS attacks are happening along with reduced bandwidth amongst other things to stamp out SanFranNans disgusting play last night.
Be thankful that FR doesn't slow-loading sponsor ads that slow down responses even more during normal times. Being free of ad content keeps things moving fast except during times when DOS spammers attack. Certainly hope the John can find a way to mitigate their impact.