People play on Huntress a lot so they obviously don't mind unlimited sharing. It's even possible they actually like it.
I hate unlimited sharing. HATE HATE HATE. The only reason I join huntress is because 99.99% of the time every other server has 0 population or is password locked for some kind of league match.
And since I'm connecting to the server solo, huntress is the only option.
Back when more of my friends were playing this game, we'd take a "join it and they will come" approach with empty servers, but that isn't an option for me anymore since most of my friends have abandoned this game because they unanimously agreed that AA assets were laughably ineffective at deterring aircraft.
Oh no, planes again...the old issue that stays an issue because its still an issue. Combined arms is great and all, but the presence of aerospace (along with the extremely boring to use and questionably effective AA assets) has definitely cost this game players (its certainly why my friends quit...the announcement of MWO was the last nail in the coffin of me trying to convince them to give MWLL another shot). Has it cost it more players than its kept? I don't believe so....but we do usually only have 1-2 pub games at prime time....
But back on topic, huntress isn't popular because of cbill sharing....its popular because its the only server that isn't empty.