Yeah, it's hillarious when people say Roblox copies everything...the site was made long before blockland and minecraft.
But most of the features that are being claimed as "copied" are new. But the thing is that nothing is ever original.
Even funniest thing is when they say voxel terrain is a clone of Minecraft.
1) Minecraft is a clone of Infiniminer
2) Voxel terrain has been around for 10+ years before Minecraft and Infiniminer
3) Totally different genres