I dunno, I think that if we had some actual, y'know,
variety in stuff, and if pirates all had something on them and the returns weren't so ludicrously random so as to give players an incentive to do something instead of lucking out on 1500 units of the most expensive minerals and just buying everything else... well, it'd be much more interesting. Right now, we have exactly one type of usable weapon: AM cannons. It's the simplest and most reliable weapon, for use everywhere. For everything else, you just use money and blueprints. I know the game's in alpha, but it really needs some variety. Cannons of different types, fire-and-forget missiles that only track enemies, combat beams of different effect, antimissile systems. Different kinds of armor that does more than just absorb damage or has more uniqueness to it than a fancy color. Maybe even different types of shields, different types of power generators, engines, etc, etc. Similar games like Minecraft and Terraria ride out on sheer variety of the otherwise simple things you can do. StarMade needs to have that variety in order to be interesting.
And of course, more challenge. Horrible alien fleets of insurmountable power in far-away sectors, roaming squads of Von Neumann drones that salvage anything they see, pirate raids that are more than a few pesky fighters from an easily squashable station, that kind of thing.
edit: On other news, bringing a new meaning to the acronym AMC, my home is now protected by a turreted antimatter... cactus.