Wonder if anyone witnessed any problem when saving a comment, such as the page "hanging" indefinitely after pressing the "Post comment" button, such as this?

Been a bit slow, but other than that , no.
I will keep my eyes open though.

It happens quite often, but usually posts eventually after pressing the F5 button, in fact, I have to press the F5 button to make anything happen, from accessing the site in the first place, signing in, looking at someone's posting, etc... it's been like this for a while now and I assumed it was a local issue, but it's definitely getting worse, and, unfortunately, the new server doesn't seem to have made any difference.

40 seconds is definitely too long, especially if this delay is particular to comments. Yesterday we have found & fixed what might be the source of the delay, so pls keep us posted

Still happening, I usually jump start it by going back to headlines after commenting.

Good morning, Martin, (it's 8:15 am here in China!), it's just taken me four minutes to log in, including pressing F5 after waiting for two minutes, this has been the norm for a while now. I'll try and post this comment now.

George,
That sounds bad. After logging in, is surfing around the site slow, too?

My comments are popping up under the build posts almost before I hit the button. Really quick now!