@Shiroyru chooses which OP fans he likes based off whether or not they suck Bobbin's dick like he does. That's why he absolutely despises me and, as seen in the comment you quoted, hates people who claim Bobbins was power cliffed/creeped. He also hypes Bobbins family lot and believes Doffy's closest siblings like Katakuri and Cracker are above the warlords, mostly to elevate Bobbins himself obviously enough.
At the end of the day he's just doing what most other powerscalers here do, mindlessly wanking a character simply because he likes that character. It's the same reason why Nik thinks Mihawk is top 1 even though he himself has said that he also believes Kaido is technically top 1, but that Oda will "suddenly retcon it".