So wait, that's worth using?
I kinda just viewed it as an inferior reverse engineering...
Reverse Engineering gives you a blueprint. The derelict Chain gives you one to five (depending on hull size / AI cores)
carbon copies of the ship you used, including installed S-Mods, and has the ability to apply three more S-Mods for free if the correct cores are used.
However, and this answers this:
also this whole scanning error thing, mabe it's just me but i did not notice a difference in installed hull mods and errors to be honest when using an alpha core at the disassembler or whatever it is called
You can get different amounts / levels of printing errors. These are normal D-Mods you can remove, but the amount entirely depends on the AI cores you use. Reading the Tooltips here is extremely important, you can absolutely *** yourself if you install cores with effects you don't want. (effectively - you can decide between a pristine hull, or more hulls with more defects, or normal amount with extra S-mods but more defects and so on).
Note that the "Automated Construction" mod can't be removed and is responsible for the free S-Mods being actually free, so removing it via console is not very smart.
regarding this:
so a random thought
Can i disassemble a zigg for more ziggs?
Yes.