If the songs don't get sung, they don't get passed along. That's how some of these songs got to us prior to RUS.
I have trouble with listening to a singer song writer (some exceptions Paxton, Lavin) who does a program of only his(or her) songs of which many..or all are not very good.
I second Kris' comment about courteous listening at song circles. Groups at informal "campfire" sings somehow seem to like the overdone songs. Maybe because we all know all the words and it's too dark to read the song