OK I have emailed Rochester and Strood Labour, using advice from both threads.
Dear Sir,
you may or may not be aware that your women's officer has published a list of 2000+ people she claims make 'twittter unsafe for trans people'.
The list includes people who have never tweeted Madigan, or have only replied to a tweet.
Publishing such a list is likely to be libel and because of the seriousness of the defamation, would probably satisfy the 'serious harm' threshold. See Court of Appeal judgment in Lachaux in September 2017 which clarified the law in this regard.
Damage to reputation can include false allegations which cause others to shun or avoid the named person - this would include blocking on Twitter.
It is not be a defence to say no harm was caused because it was limited to the Twitter website and no harm was suffered in 'real life'. The libel on Twitter can be judged by the harm to reputation in the context of the Twitter universe..
Although individuals are allowed by the DPA to process names eg in an address book, or a list of people to send thank you cards, the use of Blocktogether.org. means it is not solely for domestic purposes and therefore Madigan is at real risk of falling within the definition of data controller under the DPA.
When the new regulations (GDPR) become law in May Madigan is obliged to write to each named person explaining what data is being processed.
I have already tweeted a subject access request to Madigan but as I am blocked by the account it may not be received, please forward this email or furnish me with some direct contact details.
I want my name to be removed from the list and for any such future data to be collected and stored legally. I am fortunate my name is not linked to a professional profile or business but other women have had their full names published.
In addition, as someone with a number of disabilities, both physical, learning disability and mental health issues her latest tweets, using disablist language are particularly offensive. As these are protected characteristics under the Equality Act I expect
a) a public apology and
b) a retraction
c) redress in the form of a donation to a charity of my choice.
I look forward to hearing from you
Sashh