Can we benefit from being anonymous online?

I believe that we can certainly benefit from being anonymous online in several ways. For instance, if you are on twitter trying to give out ideas on how to tackle controversial issues like net Neutrality or the accusations against Roy Moore, you won't be often judged as much due to people not knowing your identity in the first place. If your seeking for help on how to solve a math problem or not knowing how to access amazon for Christmas supplies, most likely someone will respond to you and help you without hesitation.  If you want to donate to an organization or gathering support to help someone in need can easily garner millions of people who will take their time to do what's best for someone else. Being anonymous online helps us to quickly find solutions to our daily problems and can easily be more helpful than to go up to a stranger in a convenient store that can steal your identify or murder you at point blank range. However, being anonymous online poses a threat as they can cause disruptions on social media where people are united to fight against a cause whether it be on marijuana or something else. Also, what happens if they committed a crime that is threatening to other people? What happens if they continue to do these horrific acts by annoying people through death threats? What will be the future of the internet if trolls continue to dominate how we interact and the ability to not be harassed by them? So many questions but little to no answers as trolls derive from what society considers gratuitous.