Google Product Forums
Problems replying to comments?
ytKeane
Jul 24, 2012 5:01 PM
Posted in group:
YouTube
If you've had problems replying to comments lately, see this thread for our most recent update and info on potential emergency workarounds:
https://productforums.google.com/forum/#!category-topic/youtube/how-to-use-youtube-features/qyYM9ExKVis
We'll let you know as soon as we can on the status of the fix for this issue.