tbh everyone talks about parasite seo like it's this secret weapon, renting some big site's da for quick wins. ngl i tried it hard earlier this year, full case study on a finance comparison tool. picked a legit high-authority news-ish site (not gonna name), paid for the placement (obviously). got a great link, conv rates were solid for a bit, traffic spiked. but here's the thing nobody mentions - it just. evaporated? after month 4-5 the page got de-indexed from their internal search (lol), traffic dropped 80% in two weeks. feels like you're just borrowing clout and they can take it back whenever. so my data says maybe good for a short promo burst but building anything stable on rented land is asking to get kicked out.