You might want to look at the >100 posts already on the other thread.
Actually that bolsters my point, not everyone who comes to FR is a member, some come to merely peruse. Why should they be deprived of an article that produces greater than 100 responses? If anything that article should occasionally be re-posted, yes I know about bumping, but not all visitors do!
Mostly I mean, you should just get involved in discussions you enjoy and relax on the policing of a well-meaning member, who may or may not have reposted!!