I have a relatively low tolerance for nonsense -- on Boarding Area, Flyer Talk, anywhere -- but I think Points with a Crew indeed does have a fair number of high-quality posts. Plus, he braved Amtrak long-haul, which takes some doing, and lived to blog the tale.
My issue with Boarding Area these days? The malware ads. But there's a whole thread for that now . . . which is a sad, sad commentary all unto itself.