I don't trust them because they have done a LOT of fear mongering during this campaign saying a vote for the Greens is a wasted vote because they're not a credible party. Which winds me up.
The Lib Dems also think they mitigated the introduction of austerity during the coalition government when the reality is if they hadn't entered a coalition with the Tories there wouldn't have been a Tory coalition government to introduce it in the first place. A lot of the fundamental cuts to things like local authority funding go back to 2010. I can't forgive them for that even if I could get past tuition fees.