I'll wager a large amount of money it's me and not the website but for some reason when I hover the pointer over the subject of a thread it no longer brings up a speech bubble with the thread narrative in it.
Open Safari and click on the Safari menu and go down to 'preferences...'.
Click on the Security tab.
Make sure the 'Enable JavaScript' checkbox is ticked and the 'Accept Cookies - Always' option is selected. ...
Now that you have completed these steps click the Close button at the top of the window.
Huh???
In Safari?
You can choose to enable or disable JavaScript execution (as you can in other browsers) but isn't it installed as an integral part of the browser?