I do. I actually pay for ~30% fewer ads ($5/month on Contributor) whereas I could easily just use uBlock.

There are few reasons I do this: (1) uBlock is overzealous -- it breaks some websites and I'm not interested enough to tweak it to not break them. (2) Sites I like (e.g., boingboing, The Sweethome) don't get any money when I use uBlock, but they do if I use Contributor

I recognize that I'm a weird Silicon Valley type but I'm hopeful that we aren't too rare. There are dozens of us. Dozens!