There's still plenty of life in it! The game hasn't even finished development yet - so even if everyone here did get bored tomorrow (not going to happen), you'd have a spurt of Teh people playing it at least for a while when it is actually fully released.
I fell to my death digging out the pool and when I respawned I was floating in space for a while with no terrain at all, then it booted me out and I can't reconnect now :(
A browser's default behaviour should be treating it as an executable, because people that know/care they are zip files (the minority) will know how to override that behaviour, whilst people that don't will get all confused.