"From what I'm hearing record number of PCT hikers"
"Does this mean less mosquitoes?"
Hmmm, more PCT hikers means less mosquitoes? How could that work?
More PCT hikers, slapping more mosquitoes, means fewer mosquitoes?
More PCT hikers, drinking more water, dries up remaining water sources, means fewer mosquitoes?
More PCT hikers, cooking more meals, fry more flying mosquitoes?
More PCT hikers, wearing more mosquito repellent, means fewer mosquitoes?
Of course, most of these effects will be local, and might drive mosquitoes to other areas.
Time to move near the PCT and become a trail angel!