Regarding RIs:
Well, this year is the first year that I've ever been worried about RI's because it seemed like every one of my snakes was starting to wheeze. Instead it turns out that since they were all of breeding age this year, they got a little pissy when it came to the breeding season. I found out that none of them were sick. They were just hissing at me. They had never hissed at me before, so I didn't know what it sounded like. Since the breeding season has passed (for all but one female) they have all gone back to normal (i.e. no more hissing). My vet said that as long as they aren't blowing bubbles, drooling, or holding their bodies upright for long periods of time (to drain fluid out of their breathing passages), and eating okay, they should be fine. He also told me though that even healthy snakes will sometimes blow bubbles from their noses after they drink if water got in their nose. He said that they may also sneeze after drinking to get water out of their noses.
Regarding a glossary:
I agree, it would be nice. Even for non-snake related stuff, like some of the shorthand used on here. Some of it still confuses me, despite reading forums for about 3 years now. (You know, like AFAIK, and IMO, etc. - I do know what these mean though.)