RE: Is there any value to man and his environment that mosquitoes may provide, aside from the fact that they are harmful to us?

Dear @jsalvage, Your article is good and interesting!
I think mosquitoes should exist.
Diseases spread by mosquitoes can deter ecosystem-destroying behavior by humans and livestock.

Whenever humans and livestock invaded the habitats of wild animals in Africa, diseases transmitted by mosquitoes reduced their numbers.
When mosquito-borne malaria and sleeping sickness have devastated humans and livestock, humans have been driven out of wildlife habitat.

As a result, humans were heavily damaged by mosquitoes, but the habitats of wild animals were protected from human invasion.

So, I think mosquitoes play a role in preventing the destruction of human ecosystems.