Yes, baiting slashdotters is an easy way to get lots of traffic. Enough so that I thought about suggesting that we could use the tactic in my initial message. I decided against it because I am very tired of the cycle of taunting that baiting engenders. I'd much rather that we consciously chose to take the high road, and refrained from badmouthing anyone as much as possible.
This isn't to say that we can't post something to slashdot that says "We've revised our explanation about why OpenACS doesn't use MySQL here. We're testing a new server, too, so please feel free to come in, look around, and use the features. If we can't provide good response time under a good slashdot load, maybe we'll re-evaluate our use of Postgres".