I was part of the SourceOP 24/7 goldrush community - we even had our own 16v16 goldrush league where all of the different clans that were present on the server throughout the day would take on each other on a private server.
We also regularly feuded with the SourceOP Rotation #1 and #2 servers and most of those guys were already in comp. When ETF2l held its first tournament for medals we all made teams, and CommFT had their bracketed tournament shortly thereafter me and 5 buddies decided to make a sixes team. Also this video really helped: https://www.youtube.com/watch?v=ENruOrM01CQ
Or community is also the reason that the halo hat exists, as the guy who ran SourceOP made a program that would allow you to obtain hat drops even while not logged into tf2 - they took away all our illbegotten hats though and imposed a weekly drop limit :( He also figured out the golden wrench algorithm and obtained one, then had it taken from him, and his account banned, and then he was offered a job by Valve - where he currently works lol.
One of our friends also won some thing to get mentored by Vhalin when he was on ^6, and ended up being a medic ringer for spacewhales and got to play like once lol.
Players brought to you by sourceOP both in Highlander and 6s, that somebody may know, in order of me remembering them:
Me, Hugh Laurie, Collide, Sizzling Calamari (of Sizzlingstats fame), Yum, Wombraider, Ibby, Zalfy, cusideabelincoln, Sdogg2m, Novamode, Goomba/Kittiesoink, and most of the early -=KA=- and DesA players in highlander.