How did Salutary Neglect encourage the American colonists to lead a revolution?

Salutary Neglect was the de facto policy of the British which afforded the American colonies a high degree of autonomy. It was believed that enforcing taxes and other laws was too expensive to enforce and was not worth the hassle. Enforcement of strong British laws could also lead to insurrection on the part of the colonists. As a result of Salutary Neglect, the colonists began to feel a separation from England. They developed their own socio-political institutions and were prospering in trade and commerce during this period (1690-1760).
The Seven Year's War (French and Indian War) forced the British to re-examine their relationship with the colonies in the New World. The British had incurred heavy war debt as a result of the conflict. The colonies were now to be considered an avenue for producing revenue. This is why the British started to enforce their tax laws and created more of a military presence in the colonies. After being left to their own devices for such an extended period of time, the American colonists were not in a position to allow such interference on their political and economic future.