Code snippets usage message

[peter_budo]

Can we possibly have pre-fix message to
Use the snippet textbox to post your working and fully tested code snippet. Do not use code tags as the snippet will automatically be Java syntax highlighted.
that is showed once member switch from Discussion Thread to Code Snippet something along the line of:
Please do not use Code Snippet for posting question. Code Snippets are reserved for sharing functional code with community. This should be in red colour to catch the attention

My reason, code snippets are mostly misused by new posters thinking that it is the way to post their question with some code included

[pyTony]

Also maybe the similar match algorithm needs tuning, as I can not understand why my Sudoku code snippet (using Norvig's base) is number one cross refeerence.