I don't think the author understand bootstrap. If his first argument against using it is that any site needs to spend valuable time with a custom design then he

I don't think the author understand bootstrap. If his first argument against using it is that any site needs to spend valuable time with a custom design then he is missing the point. Bootstrap allows you to quickly get something public that doesn't look like a stowaway from the 90's. This is especially true for those of us who aren't great graphics designers. I can get a nice UI on my project that would normally be un-styled HTML. Honestly I don't care if you don't remember the design of my prototype site I want you to remember the content of it. However I guarantee that you will remember the poor design of my site and forget my content if it looks too ugly.