Why is my comment missing from list of titles for Norton Security

I've post 4 or 5 comments in last 24 hours.

Only one didn't get posted...even though I tried a second time.

Any idea why some comments/questions may not post immediately?

For example, are they possibly scanned for certain keywords and redirected to a different list (or thread) than the one for "Norton Security" where they may be placed in  a queue which necessitates a longer wait  time?

FWIW, the two missing comments are also missing from the Activity Log for my account.