Go and have a peek at Liberal Conspiracy's response to Alice Mahon.
The commenter vulpus_rex (comment no. 22) hits the nail on the head perfectly. Alice Mahon disagrees with New Labour over an issue of principle; the response is to attack her rather than the reason with the argument she presents. Others see this for what is is and ask LC to withdraw the article, i.e to conceal the rot. Come back Damien, all is forgiven.
I'll repeat here my comment on the LC article;
For those that hold socialist views and have principles, the Labour Party is no longer a suitable home for you. It abandoned its principles in order to gain power; once it did that, there was nothing left to hold on to and its purpose became, purely and simply, to retain power. To the extent that it espoused socialist ideas, it did so merely in order to secure the votes of the faithful and hence to maintain power.
The recent discoveries of the truly abhorrent methods operating within No.10 are merely the natural result of an unprincipled desire for power. For those of us who have been looking, these methods have been apparent for many years.
It is up to you whether to defect en masse to the Lib Dems, who seem to be positioning themselves for this, or set up a new socialist party. But if your actions are guided by principles as to what is right and what is wrong, you should be following Alice Mahon's example.
Otherwise, you condone what has been happening.
People are entitled to hold socialist views, even if I disagree with them. But they should still retain the basic principles of civil society. Alice Mahon is right to leave New Labour; though I disagree with her politics, I admire her principles. Other New Labour supporters should consider their position carefully.