I agree. The key term is "don't necessarily force it on others" but it doesn't mean there aren't instances where it was the right thing to do. It's all about finding the right balance. A good rule of thumb could be to seek simple solutions and minimize accidental complexity (those crappy libraries you pointed out are exactly that). My broader point is that in order to assess whether your wheel is worth it, you have to be curious and learn about what other wheels are available, and how they work. If you just reinvent on your own, chances are you will have overlooked important factors that others have already considered. When people don't, the situation oscillate between two extremes.