Just reflecting on the rumours that there was going to be some kind of expose imminently. I think there's too many vested interests in the mix. The Guardian would look like absolute fools for propping up Jack (even if you only read her Guardian pieces, it's very clear it's more fiction than fact), as well as the BBC, ITV and so on. LJC is probably so embarrassed by her association with Jack that she could well be using her contacts to stifle any stories, for fear that it would undermine her own professional credibility.
Whereas there is a trend and public appetite for exposing grifters (Tinder Swindler style) this is normally when the subject doesn't have the same kind of connections to the media as Jack.
So I think a bottom-up approach (i.e. here and Twitter/IG) is really what's going to bring Jack down. Thankfully you guys and the squigs are so damn good at it, and hilarious at the same time. Seriously, the wiki is one of the best things I've ever read - I'm spreading the word wherever I can.