I remember you! I think you used to have a YouTube channel?
Anyways, MCSG or MCGamer as its now known is pretty much a different server then what it used to be. PvP has changed drastically and many more people are good at it then what the general community used to be. However, I believe the skill ceiling is definitely lower than what it used to be.
Clans are what is keeping the community a thing (for au at least) and have probably become a lot bigger then what they used to be.
A lot of people use undetectable ghost clients and toggle or macro to cheat and get away with it. Mods are doing a much better job then what they used to at recognising them though.
A lot of new maps, features, ranks etc. Thats a brief idea on whats happened to this server since you left but ive left a lot out as well.