Well, the difference here is that we are ID'ing corals of the same species in most cases, where as in the LPS forum and SPS forums, the ID's are centered around the genus and species (not a common name). As far as common zoas, very few people can differentiate between the few speices of Zoanthus worldwide, so there is no really scientific ID'ing here (not to say other ID threads are excatly scientific, but they rely on absolutes-not color). The only things most can actually ID are whether it is a Palythoa sp. (takes sand into it's coenenchyme), Zoanthus sp., or Zoanthus giantus, which are easy to spot. Every once in a while you'll see something like snake polyps or parazoanthus polyps, but they are few and far between. In the other forums, you have some pretty indepth discussions on the seemingly impossible to eradicate pests (namely the monti nudis and AEFW's), as well as a variety of ID's to at least the genus level, which are typically much harder to come to than in zoas. While most ID's may be guesses in the SPS and LPS forum, they are actually ID threads, for the most part. Not to say there aren't plenty of discussion on the spiders, nudi's and snails that eat our zoas, too, but lately there have been soo many more threads on wanting common names, lately. I understand wanting to know if you have something that has tradability, but it's hard to trade the newly named coral if it is taken directly to ebay for sale because it has a new common name making it marketable. I'm definitely not against making money to help support the hobby (I run between 6-8 tanks all the time -depending on whther or not you count the (2)-100 gallon rubbermaid tubs with rock as tanks), so a little relief from the expense is noce, but many are seeing a trend that will create its own demise over time.
Anyway, off the soapbox. It's been a morning of rambling posts for me...