Christian Proselytizing

Jesus Christ said, "Go ye into all the world, and preach the gospel to every creature"(Mark 16:15). Why, then, is it so surprising that some people take that charge seriously?

Christians who "spread the Gospel" often do so at the risk of being called annoying or obnoxious, and certain individuals and sects probably deserve those labels. But, if mere proselytizing is not one of the most fundamental examples of "free exercise of religion," then what is?

Update: Stones Cry Out had a couple of good posts on this controversy here and here. And, Scrappleface is priceless, as always.