Actually, I think dreadlocks can look very sexy. Bob Marley had the best set of dreads, and there is one particular clip of him coming on stage to do "No Woman No Cry" in slow motion, his dreads swinging behind him, and his dreads look good! The Counting Crows lead singer had dreads for awhile, didn't he? Also very good dreads.
That said, I think there are also some awful dreads....and considering that they were supposed to be the sign of a particular religious affiliation, is it OK to have mainstreamed this?