As the user on Lobste.rs who prompted this, my take is that Decker is one or more of a number of things, and all of those are awesome and equally valid, and I hope my comment wasn’t considered criticism or a complaint. I don’t think it can be ALL of these things, though.
Is it:
A programming language and framework for building apps?
A cross platform web/desktop tool with full compatibility?
A set of intentional restrictions for creativity?
A framework that guarantees the safety of user data against all malicious actors?
Just a fun toy that you are building because it is awesome and fun?
For me, adding the ability to make HTTP requests would multiply the utility of Decker tenfold, but I don’t think you can do that and guarantee that nobody will ever create a malicious deck. On the other hand, essentially every other attack vector is already available to a wannabe attacker.
On the third hand, my hope to use Decker to write a baseball scoreboard might be missing the point as much as hoping to write a AAA game in Pico-8 would be.