There is one reason not mentioned in the article why it is worth testing code on big-endian systems – some bugs are more visible there than on little-endian sys

There is one reason not mentioned in the article why it is worth testing code on big-endian systems – some bugs are more visible there than on little-endian systems. For example, accessing integer variable through pointer of wrong type (smaller size) often pass silently on little-endian (just ignoring higher bytes), while read/writ bad values on big-endian.