If you voted LibDem (and I did), you were always voting for a messy compromise in a hung Parliament. There was no other way the LibDems were going to get any of their policies on the agenda, or get any power at all. So you've got what you voted for, and shouldn't complain unless it turns out that there could have been a better messy compromise. If the coalition delivers a referendum on AV and restores our civil liberties, then I shall be happy with the LibDems' part in it, while still wishing that it was possible to push through STV instead of AV.