Good Lord, a vast majority of my posts seeking help with an Opera/YouTube comment issue have been mysteriously deleted from the Opera forums without explanation.
Now I receive moderator treats of banishment for legitimately asking "Why do all YouTube video comments disappear under Opera after posting a (YouTube) comment?".
Yikes, it appears that the Opera team's primary defect resolution process is to simply threaten end users.
Good job, Opera. Please ignore your product issues and please banish me ASAP...!