Several times in the past 2 weeks I've replied to comments in various articles, only to go back later to check replies and find that my posts were absent. Yesterday and today I paid attention to it specifically, and noticed right away they had disappeared or never made it through. No luck even after refreshing / clearing browser cache. As a precaution, I copied a reply today before posting, found it gone, and tried reposting to get the "looks like a duplicate" message.

I'm curious if this is happening to anyone else or perhaps my browser is wacky..

Firefox 6.0