In June 2016, players exploring Falador in Old School Runescape experienced the chathead of Durial321 laughing on the screen (similar to the Barrows brothers) while green partyhats also spawned on the ground along with a pile of bones. This was an easter egg by Jagex in reference to the Falador Massacre.
Although Hollywood pirates, such as Jack Sparrow’s friends, like to grumble “arrr” or “arrrrgh" frequently, real pirates were not known to do so. Hollywood actor Robert Newton, who played Long John Silver in the 1950s had a regional accent from the Cotswolds district of southwest England where they like to roll the "r" a bit. However, your average real pirate did not exaggeratedly roll their “r” like the fictional ones do.
Lumbridge is based on Cambridge, the home of the Gower brothers, and where Jagex is still based. Lumbridge gets it's name from the bridge over the river Lum, just as Cambridge got it's name from a bridge over the river Cam.