Is this the link mentioned in the post John quoted?
If so it was a spammer... we have a new type of spammer here. They post spam messages which are almost but not quite on-topic. They often used text they have cut and pasted from other orchid related websites, often about the correct orchid but not quite on topic or making sence. Now we've had those before but these have no spam links so don't get noticed (it's only chance that this one actually mentioned on on-topic link). They then come back later and add the spam link to their signature line.
I was already supicious of the one on this thread and had been watching for the spam link being added which it was tonight. So that thread is gone and no link either on-topic or spam. Sorry Folks!