Travis Brown (a very sociopathic and toxic, straight up unstable person) tried to cancel John A De Goes, total shitshow ensued. FYI, Travis has created scripts to auto-dox people on Twitter if he doesn't like them. Travis also left Scala ecosystem after lashing out at literally everybody including Martin Odersky
Reason: De Goes invited a speaker to his LambdaConf conference, without knowing that speaker was involved in white nationalism (US). I don't remember the exact details, but it was a huge scandal
De Goes tried to reason that all kinds of people should be included in the tech conferences irrespective of their political background. Being stubborn as he is, I don't think he ever apologised. De Goes was later booted from cats project, one of the reasons why he started Zio.
IMO De Goes is a great project leader still, and many Scala devs are moving to Zio.