Originally Posted by Sjoerd
Not my experience. Thailand, Vietnam, Singapore, Malaysia, Hong Kong, Taiwan, Argentina, Brazil, Poland, Australia, Estonia all very good at making optimal use of space on visa pages of passport. Indonesia, USA and Canada are worse, especially one US officer at LAX who managed to put one stamp across two pages.
Yes, US immigration people do not like to share pages with other countries, and they do like to center their stamps. The last passport I discarded (because there weren't any blank pages for visas left) had 8 pages in it that only contained one US stamp.