Good topic.
Al lot more could/should be done to rip off the veneer of the WTBTS/JW cult and expose its lies and corruptions.
Personally I feel that the priorities are to try and hit the org financially as well as to warn potential converts of the very real risks they face by becoming a J.W.
Since the org wallows in its charitable status based on its "Bible education" work & free literature, perhaps their qualifications for charity status should be revoked due to the fact that their raison d'ĂȘtre is nothing to do with charity, and everything to do with self-promotion and self-enlargement - both financially and in converts.
In the UK, the government can be obliged to debate a topic in parliament if 100,000 signatories sign up to an e-petition. https://www.gov.uk/petition-government
Separately, complaints/questions could be submitted to the UK Charities Commission to highlight the glaring absence of charity work by an organization which has tax-free status, receives taxpayers' money via gift-aid, and which will avoid paying a fortune in taxes when it sells off it Branch Office properties in London - as well as any multi-million pound London Kingdom Halls which almost certainly will be "consolidated." (include all the other UK K.H.'s which will be sold off)
Individually we can help individual ex/J.W.'s - but to deal with the org, we need the services of an "Equaliser."