i have played roblox, i play roblox, and it can be great (once you adjust to it, its simply terrible to new players, i blame this for alot of spam)
roblox cannot talk about blockland, or any other competing game ON THE FOURMS
ingame chat however, is diffrent.
now, roblox is far diffrent from blockland, and when you cant realy compare one to the other.
roblox is very sandbox-ish. everything is made from a very basic system, the players for example, are simply block models with complicated C+ behind them.
being made of brick, they are easyer to manipulate.
being drag-drop oriented, there is no centeralized mouse, (combat is diffrent here to, where in it is about doging and trying to fire where your enemy is/is going to be.)
and yes, roblox is FULL, of so, so,so,so VERY many annoying, stupid, misunderstaning, grammer lacking, IDIOTS.
roblox is also very simple, and very complicated things (and glitchy things) must be done with what a few lines of c+ could do.