Something odd has happened for me recently: The "delete" option on comments has, with sporadic exceptions, disappeared for me, as has the edit option. I'm also for the most part no longer seeing timestamps on comments. Here's a screenshot from this morning:
Oddly, my second comment here does show the timestamp and edit options. It also gave me the delete option, but it was really the first comment I would have deleted if I could. (I try to remove comments that are no longer relevant, so as to reduce the clutter.)
Does anyone have any idea why this is happening? Is it just me?
Update: If it helps identify where the problem is, I'm running Safari 6.0.5 on a 16-month-old MacAir running OSX 10.8.4.