We are excited to announce that we have launched our new Hive Community! HiveNation will remain as an archive, but all new posts, discussions, and articles will be created on Hive Community. You can visit our new community at thehivecommunity.aerohive.com
Van, Tech Support is aware of this and working on it. Unofficially, it seems to be related to the length of the comments you enter, I have heard that short strings are accepted but longer ones just disappear. Try several shorter entries instead of one longer paragraph.