tangor - 8:57 am on Jun 11, 2011 (gmt 0)
On the other hand I don't see it as being none of the business of ordinary webmasters - ignoring a problem and hoping it will go away is not a course of action that I would recommend to anyone - should you ignore drug dealers on your street corner or racists meeting in your town square. Ignoring parasites just allows them to breed and become more of a problem to their host.
This goes to a different aspect than my humor above... Protecting one's street (web/domain/brand) is important. Also indicates where you live. In my 'hood (real streets, house, neighbors) it has taken a few broken bones (mine), noses and bones (theirs), police calls to run off the p i m p s and prostitutes (not that I blame the girls per se)... etc. Turn a blind eye to evil acts and they will come back to haunt you... same with typo-squatting.
There should be active participation in cleaning up the typo-squatters, particularly those which lean to #*$! sites... but I do realize few have the time (or the tener cojones) to engage in that activity. So, we are where we are at this time, and probably into the future, too.