There are a lot of those across America. They are usually people who have become disenchanted with the main-line denominations. These “community” churches seem to them like safe “unauthoritative” places to worship. In some towns they become “the” place to belong.
My experiences of what passes for mainstream American type preaching churches is that they are - how shall I put this delicately so as not to cause offence - rather heavy on the shepherding aspect of spiritual life. :)