I didn't do anything abnormal here, except comment twice too quickly.
Chrome. OS X.
At first I thought it was a nerdy joke. But I guess it was a bug.
I didn't do anything abnormal here, except comment twice too quickly.
Chrome. OS X.
At first I thought it was a nerdy joke. But I guess it was a bug.
Confirming. Just tried it here and the bug appears as described. It seems to be overwriting the entire div containing the comment thread with some JSON, I assume returned from the AJAX query.
There seem to be some other UI bugs, presumably with the same root cause (tested in the Meta sandbox):
This had the same cause as When trying to edit comments quick, error message pops up wrong, which is now fixed.