Uh, yeah. Hello world
Hello there!!!
Heyo! Welcome to our server! If you need any help feel free to ask anyone, staff or no staff, and I am sure they would be happy to help to the best of their ability! I hope to see you on soon 
Much proud.
Such good job.
Welcome , enjoy your stay with us!
If you need any help just ask anyone on the server. Looking forward to seeing you online.
Hello.
Hello, welcome to Project City Build!
HI THERE 
こんにちは！私の名前はアンフィトリオンです！日本語を勉強します！このサーバーはとても素晴らしいです！たのしむ！
There’s Amphi, accelerating in his Japanese. (It’s Japanese right?)
Yep, and my translation of it is this:
Hello. My name is Amphitryon. Japanese is studied. The This server is very wonderful. It enjoys it.
Not sure if my program’s missing some things, or if it’s Yoshio. lol. I use Atlas.
Welcome to the server. I’m Jet, resident large-scale builder and stressed out high schooler. As somebody always warns the new members in these kinds of threads, you may find other servers and you may leave for a bit, but you’ll always come back to PCB.
Google translate makes a bit more sense of it:
Hello! My name is Amphitryon! I study the Japanese! This server is very great! Enjoy!
Anyways, welcome!
Hello! I’m Amphytrion! I’m studying Japanese. This server is awesome! Enjoy!
The post title says “Hello Earth/Hello World.” I’m guessing it’s the latter lol