Well mains don't really hunt for OSRS gold them because they can obv buy it... But that is because there are sceptres for sale, if the thing was 8m like it was you'd likely see players going for this.

Do these bots do so purely for the sceptre fall? I presumed that they would trade in some artefacts since these give gold idk, never achieved pyramid seriously.

Either way, RWTers will always make more robots but Jagex will kill all the bots active then use data to slow the farmers down, forcing them to change the bot, making it less effective. This repeats until Pyramid Plunder is no more their simplest target. They proceed to a different piece of content.

 Meanwhile a few jmod sells a few bil.

These robots are prohibited nearly daily. They're recreated and rsetup almost daily. The very low stat demand makes it effortless to bot over and over again. Think something like 1200 are banned from this location in a day. The only way they'll stop it is if they update to RS3s anti cheat where they could see if you are using a VPN.

Botters can make more account Than a mod could physically click them. If you are attempting to utilize player mods for Cheap Rs gold this, goodluck lol, player mods are fucking useless. Should you mean like actual game developer mods, no, they should work on developing the game (bot detection especially) rather than manually exposing the bots as that is a huge waste of effort and money.