[fabricexpert]

The problem with this approach is that you get nice screenshots that look great, but the implementation doesn't always match up. Sometimes that last 5-10% of the design that was so easy in Sketch is a complete pain to implement correctly, and it gets skipped. You end up with a half-baked implementation that doesn't look quite right.

[news_to_me]

That's fair, but if you're also a developer I think it's pretty easy to keep a "how hard would this be to implement?" in the back of your head. And of course, design/development is a process.

I'd argue that getting most of those development details mostly out of your head is well worth the creative freedom it affords.