I have a pet hypothesis that, on average, those into step porn are more likely not have grown up with a sibling of the gender they fancy. I reckon those of us who did are more likely to repelled by anything alluding to incest.
People who grew up with ACTUAL hot step siblings notwithstanding.
I’d put it as “Google is Kagi, but you pay via them data-mining and profiling you instead of an up-front fee.”
Well of course you would. You paid for a search engine. You’re gonna justify that any way you possibly can. There are other free search engines out there, you know.