It's kind of funny that we need help how to have a conversation, but there are a few rules that would not seem to be common sense. For instance, one might think it rude to bold your comments, would this be like typing in CAPITAL letters in a chat channel? And ignoring rude people vs addressing them politely, would be a tough one to know. But, being specific about comments, genuine, kind, not upvoting yourself, these concepts extend from general people skills. Maybe steemit is cultivating and training politeness in all of us. :)