OSRS also moved to oldschool.runescape.wiki and AIUI jagex pays for their hosting and provides some kind of content access to make updating/syncing easier.
Plus they have RuneLite cooperating with crowdsourcing things like droptables and drop rates. (And of course mods often will outright tell them what certain droprates are or how they function).
Plus they have RuneLite cooperating with crowdsourcing things like droptables and drop rates. (And of course mods often will outright tell them what certain droprates are or how they function).