In the real world, things go wrong. While we might all wish that everything we did was “fix once, stay fixed”, that’s rarely the case.
Things that were previously “not a problem”(TM) can become “a problem”(TM) rapidly for a variety of reasons:
someone changes something unrelated / without realising it would impact
Read the complete story: http://feedproxy.google.com/~r/seomoz/~3/3NrOiwOuEnk/seo-monitoring