Technically, buying RuneScape gold is against Jagex's rules. Their official stance is that any form of real-world trading (RWT) is a bannable offense. That said, gold buying remains prevalent, and bans are rare when using reputable sellers with discreet delivery methods.

Still, risk mitigation is key. If you're buying OSRS gold for sale, you must:

Use a trusted site with a proven track record.
Avoid trading with level 3 mules in obvious hotspots like Lumbridge or Varrock.
Don't advertise your purchase in-game.
Make the trade in a safe and random location, ideally with a plausible cover story.