Sorry to be controversial Claire but I think this e-mail may be doing exactly what it accuses others of doing. i.e misleading people. The basic thread of it seems to be in trying convince people, and outsiders at that, that these protesters must only be objecting because they "hate" homeless people.
After some googling I found the following site which lays out these objections....
http://www.communigate.co.uk/london/ctra/page3.phtmlThe points raised against this scheme seem to be many and varied, concerning all aspects of the development such as building sizes & types, transport links and conservation issues whilst also highlighting alleged differences between this and the New York Common Ground project. Yes they are seeking reassurance about the makeup of any new inhabitants but their opposition seems to be based on more than just discrimination against homeless people.
I personally don't know enough to say whether or not this scheme is right or wrong but I don't think it should be influenced by mass support from "outsiders" drummed up by an interested party.
Also, 800 voices who live locally deserve any objections to be heard fairly and to have any of their concerns about this project addressed.
I just think a more proper course of action for Crisis would be to put their case across to these objectors personally and discuss these issues with them, rather than trying to organise a mass flaming by email of the planning committee by people who are not directly involved.