Comment by protonfish

There is a lot of emotion here but nobody seems to have hit on the major pain point of Bootstrap. It is great for a quick prototype but if you want to do anything that deviates from the Bootstrap styles it creates an unmaintainable disaster. What would be minor CSS changes becomes significantly more time-consuming or impossible. Any small amount of time saved in the initial development is quickly lost. Using Bootstap is the worst kind of technical debt your application could be afflicted with.