[yogo]

You're doing it the right way. The PSD is a blueprint for what the end result should look like. You implement it the best way possible for use in the browser (gradients, border-radius, etc.). For responsive, either the designer puts together comps for the various breakpoints or there is a discussion about how the main comp will change at various resolutions.

The point about bootstap made in the article I only see as relevant where your goal is to have something that looks standard or use a theme for bootstrap, for anything unique or visually appealing it's often faster to play with certain concepts in photoshop before building it out.

None of these things are really a problem if the designer is really a web designer. You can be backed into a corner real fast when you have print designers designing for the web.