https://www.stonewall.org.uk/about-us/news/stonewall-statement-outcome-allison-bailey-case
Stonewall were found to have not discriminated against AB or caused anyone else to discriminate against her, just to clarify. There's a thread about it but to summarise the £20k or so AB received from her employer Garden Chambers was about some tweet they posted, nothing to do with Stonewall (and if GC hadn't made that tweet AB wouldn't even have had that £20k). If anyone thinks spending £1M of their own and others' money to get £20k is worthwhile then perhaps business isn't for them.
It also shows just how gender critical the mainstream media is in Britain. The first case a tonne of tabloids were milking the £20k Garden Chambers payout for all they could (at least one tabloid falsely stated she "won" against Stonewall which they had to make a retraction for, and Julie Bindle wrote an article about Bailey "crushing" Stonewall and "ending its rainbow reign" [rolls eyes]). The 2nd/appeal case which was against Stonewall only, where AB simply lost outright, the major tabloids are somewhat very quiet about, only a few lesser known websites are posting about it.
"The first case was very much worthwhile for what it revealed about Stonewall. "
Well this is debateable, it would appear to show Stonewall aren't as bad as AB or anyone else with similar gender critical beliefs would claim, and also there is nothing discriminatory about what Stonewall are doing or the program they have that orgs can sign up for.