Here's a story about spawn commands gone wrong:
Once upon a time, I had just loaded up starmade, and had a real craving for some space combat. So, like anyone on a singleplayer game would do, I decided to use admin commands to spawn in a bunch of fighters, both from my faction, and the pirate faction.
However, there was a problem.
You see, it had been some time since I had last played starmade, and you could say my memory of the inner workings of command syntax had temporarily slipped my mind. As it is, it should have been /spawn_mobs [insert ship here] [factionID] [number of ships]. Right? Well, for some reason I could not for the life of me remember which came first, the faction ID, or the number of ships. So, I decided to run a test.
I started out using a '1' in each spot. Naturally, a solitary enemy fighter magically appeared n the space in front of me. I thought, "all right, I remember how to do this. What could possibly go wrong?" Well let me tell you, things DID go wrong. Fast.
Usually player factions have IDs in the 10000 range. So, I decided to change the command to spawn in an allied fighter. But there was a catch: my eagerness to finish setting up for my pending space battle had shifted my attention away from what number I was actually changing. Instead of putting in the '10001' first and the '1' second, I flipped them.
Suddenly, ten thousand and one enemy fighters spawned around me (luckily I was holding out in my heavily-shielded cruiser). Surprisingly, the lag wasn't too bad at first, so I thought, "well, this is definitely a problem. Though I think I might have a solution..."
What better way to deal with 10,001 enemy fighters, than 10,001 more allied fighters?
I thought, "well, I know now what I should have typed in. Now I just need to make both numbers 10001..." But once again, my lack of attentiveness was my undoing. In my rush to deal with the horde of enemy fighters, I (again) didn't take the time to fully check my command. Instead, I had somehow spawned in 10,001 MORE enemy fighters.
What was a situation that had seemed manageable, had transformed into a nightmarish lag-fest with no hope of return. In a desperate attempt to save my computer, I opened task manager and killed the program.
I ended up having to reset everything after that experience. But MAN did I learn my lesson.
TL;DR: For the love of starmade-god, check your commands before pressing enter. Seriously.