Yep they sure have.
I have been here for a year and a half now. Aside from a recent slow down I have been playing 5 nights a week for a few hours each evening for the better part of that 1.5 years. I still love to wander the battlefield admits a flury of battlemech fury and sometime find myself just standing in amazement for a few seconds. The sights, the sounds, the quality. Hearing the thumps of the mech footfalls as the crush the soil beside you, missiles streaking past and exploding in to ferro-fibrous armor, I use good headphones and I must say the sound quality to this mod is astounding. Still.
Just wait until we get these new toys... The battlefield will be littered with mechs. I foresee 120+ players a night for a month or two again and a slow taper depending on what 5.2 has.