The stats of the different hosts makes interesting reading
The sheer number of sites who are about using hosts really puts it in perspective
You can see how used BAM & BOX are in comparison with the rest
https://www.similarweb.com/
By Global Use/Traffic Rankings
Imagebam = 1,032 (1000+ sites using it)
Imgbox = 1,906 - same as above
Imagevenue = 1,917 - same as above
Pixhost .org = 2,068 (995 sites using it)
https://www.similarweb.com/website/pixhost.to
Pimpandhost = 4,872 (703 sites using it)
Pixxxels.org = 7,431 (postimage.org adult side) (1000+ sites using it)
Turboimagehost = 16,664 (675 sites using it)(banned on VEF)
Hotflick.net = 23,255 (110 sites using it) (Dead)
Imgbb = 38,415 (369 sites using it)
Postimage.org = 86,970 (non-adult side) (291 sites using it)
other sites which provide similar sought of stats
http://www.alexa.com/siteinfo/pixhost.com