Thirdwire. Despite it not being hardcore, it had a huge fan following. It too had it's hickups, but it was open to allow the 3rd parties to keep it alive.
EAW. Another classic that was a huge hit.
Janes series...
And none of these took 15 years to reach that.
@Troll I'm relatively happy with it, but am on a self-imposed break. Letting things settle down a bit and will see where it's headed.