So many comments on here sum up the current "twitching" scene.
Not too many people care that an Ortolan has been reported because most people have seen one (ok, it's nice to see another but we're not all gonna panic over a report of one). Someone, sensibly in my opinion, suggests that this time of year may be better for a "mega" species that none of us have seen, so suddenly the whole witch-hunt thing starts up because, heaven forbid it should ever happen, a mega "tick" may just have slipped through our fingers. What the bird was will probably never be known, but what harm has the "possible Grey-necked Bunting" message actually done? People would've looked for it whatever it was so the fact it's not been relocated means it's probably moved on.
More importantly though, why do people feel the need to question the observer here? He put news out and then admitted he may have got the id wrong when questioned. If he had come out and said "actually, I think it may have been a female Reed Bunting" no one would bat an eyelid, but, because it may be a mega, people are now questioning him in ways that really aren't their business. It's this sort of attitude that can lead to suppression - who would blame him for not reporting the next rare or possible rare bird that he finds?
So you might have missed a mega, or even just an Ortolan. Either way life will go on and, who knows, if you put in same amount of time and energy into your birding as you do your doubting, you may just find the next one!