Considering modern CSS has been abstracted away by libraries and frameworks, I've noticed a trend among startups, smaller businesses, and companies short on time that they so often default to Bootstrap. Developers who don't work on front-end, the execs I've been under in several jobs previous, all want Bootstrap for these reasons.<p>It makes me sad that my job as a front-end developer working with HTML and CSS has become scaffolding a framework instead of creating unique and non-Bootstrap designs.
As mainly an app developer I've chose to use Bootstrap out of convenience but I agree with technojunkie, it's a cookie cutter approach that limits design.<p>Personally, I am constantly impressed and humbled with what I see being done with CSS. It is programming, no doubt about that, but the end result is often more. It's often "Art" and when it is I cannot help but admire it.