So, no doubt you've noticed that your Muni buses are a bit more chipper than usual, with a friendly message scrolling across the head signs. Some folks have been grumbling to us about the greeting -- "isn't the destination sign for, you know, DESTINATIONS," that kind of thing. Meh. We guess. Probably. On one hand: saying "welcome" is good manners, and the APTA thing -- a big transit conference -- is kind of prestigious. The......