My point of view for the majority of these cases is: "We'll probably never really know." The odds are in favour naturally, of most of them being well, something natural. But there's always the possibility, however slim, that some of these were the real deal.
The Kumburgaz (I have to control myself to not chuckle at the name!) case is interesting - particularly Zoser's first pic. However, I think the video is being a tad disingenuous when it suggests that there is a visible 'alien crew member' present. Not just because they automatically assume it's alien, but that it is in-fact anything alive at all. Not once do I see any movement there (that is not directly related to the entire image moving - camera handling issues). The likely result is of course, that it's a boat facing towards the cameraman (but let's not go down the angle-of-sight debate again like with the aircraft case posed earlier. lol!)
Anyway, thanks to Zoser in the main for the 'interesting' testimonies which have certainly kept me engaged over the last few weeks.
I'll go back to lurking now...
Edit Reason: Unintended use of banned word (was part of another non-offensive word)!
Edited by Matt Vinyl, 26 November 2012 - 09:16 PM.