I received an email about the weekend. They really didn't discourage coming, they just emphasized the best way to manage the crowds was to come early (have breakfast in the park at 8:30) and stay late.
I actually find crowded days some of the best days to experience SDC as a whole (however when you can't walk that's never good). When it's not crowded, our group just jumps from ride to ride......but on crowded days, we tend to shop more, catch a show, go to the petting zoo, eat more, etc. We also tend to shut down the park because the last hour or so the rides become walk-ons (especially if they decide to extend park hours).
Anyhow, that's my experience.......arrive way early, avoid the traffic on 76, and still have a great day. However, if you arrive late....traffic on 76 (no matter the crowd in SDC) can ruin a good day.
Jay