i think it all comes down to personal preferences and what’s cringy and what’s not is subjective as well. just as any other type of fics, there’s different tropes or writing styles that might adjust to what you want or like to see. i have my own set of rules or preferences when it comes to what reader / OC fics i read and i have enjoyed them a lot, personally. as to why i read them, i have been in fandoms for a long time and, as a writer myself, i have always enjoyed people writing about their OCs, self inserts and whatnot. i just love to see people’s creativity when it comes to inserting new elements or characters in a established universe and i always try to explore that side of the fandoms i’m more invested in… not going to lie, tho, sometimes i just want to read something really self-indulgent and have my OC fuck my favorite character yk i will always support some harmless self-indulgence! you don’t have to like these fics or force yourself to read them, as long as you are not disrespecting or mocking authors or works publicly that’s perfectly fine.