That does send a message, but I haven't seen it being effective yet. Over here, we have a very bad municipal government, so when elections came, with a bad off

That does send a message, but I haven't seen it being effective yet. Over here, we have a very bad municipal government, so when elections came, with a bad officialist candidate that was called a "fridge" and divided opposition, over 15% voted "none". So far, it hasn't had much of an effect (though the governing party has taken note of it, for the next elections).