As for the post about dangerous sport climbs, here's my opinion. Leave the trad lines alone. If they are dangerous, leave them that way. Respect the ethics of the FA. On sport routes, however, if you're going to use bolts, use them intelligently. Having huge runouts to the first bolt, decking potential anywhere, homemade hangers, etc, is stupid. Bolts blemish the rock anyways, so make them worth it. Don't, however, indescriminately bolt everything in sight.