In reply to:
I think it would have been better to give people more benefits from referrals the longer they had been at DH...
Well, there *is* some degree of that if you opt for the ongoing "percent of revenue" reward rather than the "quick hit off the $97 dollar crack pipe" ... While I don't tout promo codes, I have a couple of referrals that have been in place under that program for years ... and that can add to up to a lot more than $97 per referral. 
In reply to:
I actually think the forums may also benefit from giving a couple of the more regular posters moderator rights (as long as they actually want them). They may not be DH employees, but they tend to have a far better understanding of what fits in here and what doesn't in that they're on here every day.
That suggestion comes up every now and then, and it probably has some merit, but I'm not sure many would actually want to take on that responsibility.
My experience as "customer sysop" on the DH Wiki has been rewarding in its own way, but it has also resulted in a fair amount of unpleasantness as almost every decision made can produce vehement ranting and raving from one quarter or another (and I think scjessey might describe his experiences in a similar manner). It is a fact that you cannot please everyone, and the silent majority of those that appreciate your efforts and respect your motives and decisions are almost always drowned out by the lunatic fringe looking for a fight.
All in all, the freedom these forums provide is a good thing and, while DreamHost staff members *have* stepped in from time to time to deal with particularly problematic posters, the pretty much "hands off" approach seems to work fairly well (the "spurts' of "spamtardation" generally dwindle away and die pretty quickly).
That said, if DreamHost ever does want to create a "customer Forum administrator, I nominate Lensman! 
--rlparker