Soft proof is not working?
Sorry if I misunderstand how soft-proofing works, but here's how DT is behaving.
For testing purpose, I assigned my monitor the BRG.icc profile, all photos shown with blueish/greenish, so the profile is being applied correctly.
However, turning on/off softproof doesn't show any difference. It seems to me it uses only the "display profile" setting, and ignoring the "softproof profile". Similarly, if I choose sRGB as "display profile" and BRG as "softproof profile", toggling softproof doesn't show any difference.
Also, when I edit in darkroom, the photos are shown with my monitor profile, but when I export as sRGB, the color is less saturated (when upload to Flickr/G+, and Firefox takes into account color profile pointing to my monitor ICC). As a result, I now have to select the monitor profile when export in order to have it looks like how I edited it.