Could it be that you are perhaps unaware of what is a cleverly veiled spam reply or a scam reply? Lots look conversational, even genuine.
You only have to mention NFTs, even in a negative light, and you generally get drive-by likes from verified NFT-related accounts, and if you check their 'Likes', they've liked dozens more tweets since yours. The idea being to draw attention to itself with a certain demographic. Twitter has its own option to report people for this exact behavior.
Likewise, the number of QRTs in replies to things boggles the mind.