I certainly don't mean to say you're even remotely 'stupid'. It's just that I've been a birder so I know that this is an enthusiastic group and wanted to share that perspective.

As for what they buy, they do buy a bunch of things like books, binos, recorders, clothes, travel to those places etc. etc.

I have no idea if this particular TC50 company will execute well. And even if they do, whether they'll make any money at all. But you seemed to be questioning the very premise of such a site and I think you should reconsider that. Birding is not that small a niche within a niche... Perhaps a site for Latvian poetry that was written after the Soviet Occupation but before Gorbachev - that's a niche! Not birdwatching.