Like Peter, I am ex-labour. What would be more productive of Labour MPs/Councillors and activists, is instead of concentrating on the failings of Lib Dems, why not concentrate on making your party more appealing to us ex supporters and to other voters (Tory, Lib Dem, Greens, BNP, UKip etc), I have some suggestions
1) Get rid of Tony Blair
2) Get rid of the vast majority of the front bench
3) Get some decent policies, that don't sound like they've been written by the tory party circa 1985!
I am open mineded, I can imgaine voting for Labour again, but not until they sound and act more like a centre-left socialist party, instead of centre-right conservative party!
