TTT is the biggest lol ever.
Its a bunch of younger Blocklanders who group into servers, make empty threats, and then get themselves banned.
I had one guy come to my server, leave spam everywhere, and claim he was from TTT. So I cleared his bricks and asked him to stop spamming the chat or I'd have no choice but to ban him. Naturally, he kept spamming. I kicked him, he returned with some of his friends saying they'd DDoS the server. A few kicks and bans later and they were gone, that was it.
I dunno if TTT is some kind of ironic joke, but if its not, its just embarrassing.