It is very uncommon that there is nothing else to fix in a post without proper formatting.  Salutations/Signatures normally appear in such posts, as do "Help me please", some variation on "Thanks in Advance", and/or lower case "i".  Plus there is usually spelling & grammar mistakes or spaces before punctuation (if there is any punctuation at all).  The point is most often there is *something* to fix in order to get over the 6 character limit.

>Some new users will post only code with out the coding format 

If there is nothing in the post except code, then leave a comment for the OP and explain what to edit and what they need to add.  Might even be helpful to link to [markdown help page][1]. Without any explanation in the question body, it will likely be downvoted, closed, and deleted - so a comment would be better for the OP in the long run. 


  [1]: https://stackoverflow.com/editing-help