Plan Z is only when you are directly engaged, and have absolutely no other option.
Until then, stay home, eat popcorn, and keep yer powder dry.
posters only,
Lurkers many more.
When the image server bogs down due to heavy traffic, there will be 10,000+
Hard to know, but if the servers have 10 gig capacity, and the pics are, say 2 MB on average, that will give you an idea of how many pics are being downloaded.
No idea what the server bandwith is though, so calculations are moot.