I'm hoping that, although this is primarily a response to wolfphotos post, all will read and express opinions on the points I have made!!
Sorry but I take exception to this i am a photographer and probably wouldn't know what i was photographing until I looked it up but I would bet the same would go for an awful lot of birders. Also if they had not been photographers you would not have the proof that the bird was there. Then there is the question of who would you report it to anyone who has read this forum recently and seen the abuse that people get when they post about a bird they have seen wouldn't dare mention it. Having witnessed the recent scrums at Twitchwell with the poor Little Bittern I don't think I would mention it anyway. If you did report it there is the pile of forms and descriptions you have to fill in to be excepted by the gods of rare birds. Finally perhaps the real question is why there were no birders on site to witness the high tide spectacular or is that something that is beneath experienced birders because there is no tick in it for them. Maybe if "real" birders remembered why they started watching birds and stopped obsessing about ticks there would have been some birders on site and not "just" photographers who are, obviously, only interested in the beauty of the subject and capturing it for future enjoyment.
Sorry that you took exception, wolfphotos, it wasn't completely intended (although I find it intriguing upsetting a pseudonym) goldenwingedwarbler has pointed out important aspects of 'forms', which I wouldn't go into as I don't for personal and political reasons.
However, there are a couple of your points that I would like to take up.
Firstly, you comment on taking pictures and identifying them at home. In 'the good old days' (when people took notes and had fieldcraft, both in their birding and their twitching) I believe that the majority of birds would have been identified 'in the field'. It is interesting that people bemoan the lack of notebooks, but can the same be said about the lack of fieldguides actually used in the 'field'. If these photographers had a copy of Collins on them, then they would have realised that it wasn't a Common Crane (and if they had looked in the back, that it was a Sandhill and that it was very rare!)
Secondly, your comment about proof that the bird was there. You seemed to miss my starter about the benefits of photography, where I was alluding to this. Some people are very happy the bird was photographed in Norfolk and that it therefore adds to the natural history of the county (I won't delve into the issues of photos not actually being proof these days!) - although with counties being political, rather than natural divisions this doesn't have the same effect on me (except as a dirty filthy twitcher, whose only important list is his county one - I know, I'm an anomaly!)
Thirdly, you seem to have made the assumption that the people who got the pics were there because of the High Tide Roost Spectacular, therefore they would have known about the RSPB and could have reported it to them earlier if they had wanted to, so the 'who to report it to' speaks for itself! (and as far as being present on this particular day, the idea of 'enjoying' this spectacular with 100s of other people, when there are plenty of other opportunities to do so in more solitude, is not something I'd choose to do - I leave that for one-off occasions, where there might not be another opportunity to experience the occasions, like twitches!) Also, remember that the bird in question was found further North of the RSPB Wader Spectacular.
Fourthly, you mention the 'poor Little Bittern'. Does anyone think that the bird was affected by the people? The fact that it kept on appearing (irregularly) in the same area, rather than departing sooner (or just further back into the reeds) makes me wonder! I know the behaviour could have been better and I, for one, continue to promote and expect good behaviour at twitches, I never saw people going down the bank and would have mentioned it to them at the time. I know after the 'first' day that there was a request not to stand on the bank (I didn't hear this being asked on the Saturday, but would have helped to manage it if the RSPB Wardens had tried to 'enforce' this) so hope that the request was adhered to and if not, why not. The time I spent there on the Saturday was often fraught, but not really badly behaved. Can I please apologise on behalf of the group I represent if you personally was affected.
Fifthly, I have no expectations that 'normal' people would report their bird sightings (or even read) on this thread on bird forum, although that is an option that we would like to promote (recent 'abuse' (as you call it) on here has been less to do with the actual birds, than the circumstances of the sighting and the willingness to listen to more experienced opinions)
From reading your post I have made the assumption that the birds are just part of your particular hobby and that you take pictures because you are 'only interested in the beauty of the subject and capturing it for future enjoyment' (wasn't sure if this was meant ironically) and that is a beautiful sentiment. Hopefully, from your experiences, you also realise that others get their interest and enjoyments in other ways, that you and others could bring, through what you do.
Live and let live. I hope that someday we accidently meet and I point out something to you that you get great enjoyment out of, in the same way i would have got great enjoyment out of seeing the Sandhill Crane in Norfolk.