In turn the results are seen by thousands more of developers, so the question is what has been the effect of that information flow in the way people chose technologies and stacks?
One obvious hypothesis is that it makes people chase the same "popular" technologies. Everybody want to be part of the "winning team".
But the surveys also surface less known and "loved" technologies which migh attract attention that they otherwise wouldn't.
Its not clear which effect is stronger.
I use the tools and languages I can make money with. Most often that means whatever my customer already chose. If I get to choose I stick with the mainstream so I can easily find people with expertise and experience.