"Cultural Adventists" are to traditional Adventists what ethnic Jews are to orthodox Jews.  I'm always amazed at how many ethnic Jews express sentiments which would be considered anti-Semitic if uttered by non-Jews.  It's somewhat similar with "cultural Adventists."  Many of them do not believe some of our doctrines, and are even embarrassed by some of them.

But I continue to be puzzled as to why those who don't really believe the pillars of the Advent faith, continue to call themselves Adventists.  I can understand wanting to continue to socialize with friends, but if I didn't believe what the church teaches, I wouldn't call myself an Adventist.

There was a time when we would call these folks backsliders, but back then they usually quit coming to church.  Now, many of them keep coming, but they're not really on board.

As for not sweating the small stuff; who defines what is small?  Any deviation from truth is a step away from the kingdom--and that's a pretty big step.