This is a great question, but not one I can answer in a small HN comment :-). I may write a blog post about it one day. The core of the argument is that Deno can save you an insane amount of time / discussion (OOTB linting, formatting, testing, standard library, etc). It aims to unify the ecosystem into a single style, like in Go.
> Do you believe that Deno's 'more sane' defaults for security will appeal to developers in the long term? Do you think that the front end community will be receptive to these defaults?
I think many developers do not care about permissions, and also will not in the future. This is a problem, but not something that can be tackled overnight. Security is often not emphasized enough in our industry unfortunately. Because of this I think sane defaults and opt ins are good - they push people to think about security at the most basic level. Maybe the log4shell attack also shows people that it is a good idea to sandbox server side scripts aggressively (something we have been pushing for), to prevent large scale system takeovers through a single vulnerable entrypoint.
> Choosing TS as your language de jure, do you think that you will alienate any dyed in the wool JS devs? Can we expect that TS is now effectively the superset of JS going forwards?
There is work being done on this. I don't have too much to share right now, but expect some updates on this early next year. JS has to evolve to support some form of type annotations first class to stay relevant.
> Do you believe Deno's lack of support for NPM style package management will result in cleaning up the frontend community's over reliance on 'leftpad' style packages? Do you think that Deno's approach to dependencies fosters a more considered approach to transitive dependency bloat?
Maybe, maybe not. I think it is still to early to tell. I do think that so far it is looking like it. People seem to be doing less weird stuff like "leftpad" with Deno so far. Ideally all these little helper modules should just be part of JS directly (hit me up with suggestions!)
> Again, huge fan of Deno, and happy to hear about this announcement.
Thanks, glad you like it :-)
