I saw a 340 Roadrunner build thread and the car was super nice, it had very little interest while a ratty 383 build was garnering many more comments. Just my observations.
It's always seemed odd that some posts get traffic & others never seem to take off... That may happen more to A bodies & small blocks but it happens to B & E bodies too... Certain posters always seem have their followers, other posters no matter how interesting their question they rarely generate responses...