I hadn't seen any complaints so I figured it was just me.  I feel like it's been happening for at least a month.

Most of the time I just have this in the top right corner

but I can read and post just fine.  Other times I get the permission denied and can't read (or post) anything.  When that happens, about 90% of the time I can pull it up on my phone (not logged in) and read messages.  Once in a while the site is just completely dead.  <shrug>

I figured it was the classic Intuit model of "you're not paying us enough money to have access to this feature."

Rick