It can be perceived as both harmful and useful (like many things in this world). It all depends on the point of view.
For example, if you perceive life through explanations, it may seem useful because it tries to explain everything. And if life for you is primarily your individual perceptions, then it may seem harmful, since it constantly distracts from them, immersing you in its speculative constructions (even if in many ways created in order to explain these perceptions).
It can be perceived as both harmful and useful (like many things in this world). It all depends on the point of view.
For example, if you perceive life through explanations, it may seem useful because it tries to explain everything. And if life for you is primarily your individual perceptions, then it may seem harmful, since it constantly distracts from them, immersing you in its speculative constructions (even if in many ways created in order to explain these perceptions).