[qdpb]

Does he have any control over future development of javascript and how this future development will affect a wider community? I don't think he does.

But he is the CEO of the company, and what the company does going forward does depend on him a lot.

I think this is the key difference between boycotting the browser and boycotting the language.

[hetman]

And has he been directing Mozilla in a way that would reduce equality for all its users? Is this even remotely likely?

[Havvy]

He's quite active on the ES-discuss mailing list. Though he expressively said he'd tone down his involvement on it with this appointment.