Oliver's soap-eating habit is one of his most iconic and frequently discussed character quirks in the Fundamental Paper Education fandom. While the game does not provide a direct in-universe explanation, it is widely regarded as a deliberate absurdist character trait introduced by his creator Kaaatie to reinforce his unpredictable, chaotic personality. Fans have theorized it ties into themes of self-destructive behavior and his overall troublemaker identity. The detail has become a running joke and beloved meme within the FPE community, frequently referenced in fanart and character discussions.

Oliver and Delta, also written as Delta/Alice or represented with the triangle symbol, share one of the most talked-about relationships in the FPE fanbase. The two are depicted as being in a romantic relationship despite Oliver's openly malicious personality, which has generated significant fan debate and content. Many fans explore the dynamic as toxic or morally complex, and the pairing has inspired a large body of fanart, shipping content, and character analysis. Their relationship continues to be one of the top searched topics among players and fans of the Fundamental Paper Education universe.

In online creative communities, a "sona" is a self-insert or creator-representative character. Oliver being Kaaatie's sona means he functions as a personal representation of the game's creator within the Fundamental Paper Education world. This makes his character especially layered, as he exists both as an antagonist within the game's narrative and as a self-expressive avatar for the creator. Fans often discuss how this dual identity shapes Oliver's design, personality, and role in the story, making him a uniquely personal figure in the FPE universe compared to other student characters.

Zip and Edward are fellow student antagonists who work alongside Oliver as a bullying trio in Fundamental Paper Education. Together, the three form a consistent group of troublemakers who target other students throughout the game. While Oliver is considered the most prominent of the three due to his role as Kaaatie's sona and his more complex character relationships, all three characters have developed dedicated fanbases. Their group dynamic is a popular subject of fan content, and the trio is often depicted together in fanart and community discussions about the game's student cast.

"Basics in Behavior" is a key story arc or chapter within Fundamental Paper Education in which Oliver plays a primary antagonist role. The arc is frequently referenced by fans when discussing Oliver's most significant in-game moments and character development. It serves as one of the most searched pieces of FPE lore, with players and fans seeking breakdowns of the events, character motivations, and outcomes. The arc has contributed significantly to Oliver's reputation as one of the standout characters in the game, cementing his place as a fan-favorite antagonist and a popular subject for FPE collectibles and fan-made goods.