Hi, I wasnt attempting comedy. These are all features that I searched for on the quest to try and answer this for you, or to help you FIND the answer.
The P-Bass pickguard was mentioned because it was an identifiable feature not consistant with many stratocaster designs (perhaps Ibanez Blazer series is closest to that pickguard shape, while not being known for single humbuckers).
The position of the input jack was also significant as most cheap copies will follow the stratocaster design and mount to the body. This suggests a company/ factory that is either using telecaster style hardware or is setting itself apart from the rest. Washburn springs to mind.
The cheap tuners were an identifiable trademark of Asian-made guitars, with the pot-metal castings and housings being easily recognised, ruling out most American made instruments.
The body does not appear to be standard sized, it appears small on Cobain. This is another indicator that may assist your search.
I'm glad you mentioned the tremolo bridge. It is another piece to search for, very distinct in its design, not of standard fender/ fender clone design. Look for it specifically in decoding and aiding your search.
Similarly, your observation of a vol/ tone pot was ALMOST useful, but you missed the details. The vol pot is unique, low and wide, possibly bearing an insignia or design, reminiscent of gretsch stylings. Look for knobs of this style to identify a brand of guitar.
This also points to the humbucker, open black and black, not cream or zebra and not covered. Look for this too.
your straight 6 and plastic nut comments were not needed. I think you overdid it with those.
And finally, the right handed comment was because it was not a left handed guitar, so could suggest a cheaper company that did not do lefties. Similarly, Cobain was renowned for smashing black stratocaster style guitars at end of nights. It is reported that many of his finds were pawn shop purchases. The right handed guitar may have been strung for basic playability to get through the song before he put it through a bass drum.
I genuinely hope this expanded set of details helps you in your search. I hope next time, you might take the time to consider your responses when someone is offering assistance, even if it not immediately useful to you. The fact that someone took the time to explicitly help you should not be a point of mockery.