A lawsuit filed Tuesday in federal court in San Francisco against the PlayerAuctions gaming marketplace may provide the answer to an important question for online gamers.

The name Roblox was a mash-up of the words "robot" and blocks" – and it stuck. The platform grew quickly in popularity – and there were also early warning signs of its future issues.

Roblox has long been the target of criticism for its security protocols. The controversy has also encouraged so-called vigilante users of the platform to seek out and expose child predators.