User blog comment:LurkerLordB/Survival of the Cathars/@comment-32656-20111118070900

No way. The Church was unified at that time, without the problems that allowed Luther to work. Their being crushed and wiped out like otl is pretty much a given. They were also so strange that they had no change of expanding into something major. The Zoros~ once had millions of members, and survived for that reason. The Cathars, not so much.

Revivalist movement, not at all.