It's interesting that that has been your experience. From my perspective, I don't see that at all, though I may simply travel in different circles. The phrase is used often by Lloyd-Jones and John Macarthur, just to give two at random examples of people not normally thought of as antinomian. Indeed, Lloyd Jones uses it in a sermon on Romans designed to show that atonement for sin is absolutely necessary for sinful man to be in a personal relationship with a holy God. In their cases (and in my experience) the phrase is generally an attempt to distinguish between a real and living encounter with God as his child and a moralistic form of religion based on church attendance and "being good", of the sort that used to fill liberal churches throughout the country. It's not a phrase without its drawbacks, as it tends to be very individualistic, and can sometimes become a sort of "me and Jesus" thing, with a very low view of the church (common in broader evangelicalism). And it can put a lot of emphasis on how you feel about God rather than on the objective truth about who you are in relationship with God through Christ (as in much broad evangelicalism and Second Great Awakening influenced thought). But the phrase itself isn't necessarily bad by any means - unless you think that the Puritans were entirely wrong with their emphasis on experiential Christianity.