4 years, really? Wow.
I'd like to join JLAmber in saying a big thank-you and well done to everyone who's uploaded, as well as to the unseen army of volunteers who keep everything shipshape.
There are so many great shots that I'd really be hard-pressed to pick a favourite, but I do like that we get the occasional off-the-wall shot that wouldn't stand a chance elsewhere. AvB seems to do a great job of bringing the really interesting stuff to the fore, which means we must also say thank you to those who vote there.
Hopefully Year 5 will be better still!
My friend and I applied for airline jobs in Australia, but they didn't Qantas.