We'll look into things further, but unfortunately the kind of feedback being provided in this thread isn't helping us to troubleshoot the possible issue any further, so we're going to close the thread.

Rest assured, we monitor site performance regularly externally with site speed monitors and other tools. When we're aware of a serious concern with accessibility, we will work to fix it. We will also be moving to new servers for the community by the end of the year, which should help with any intermittent problems.

Thanks for your continued support.