I consider it to be more valuable than a "stupid gimmick", even if more in message than in direct utility - it fights to retain peer-voting and crowdsourced evaluation on the quality of online information, which is something that seems to be dwindling away with each passing year.
No mobile support as of yet. (Not pleasantly, at least.)
Currently there is a hard-coded example file loaded with the demo command, but that's the extent of automatic demo loading. Planning to improve this in future alongside a full frontend rewrite (too much tech debt).
Thanks for the extra links, looks like a good read :>