People are giving of themselves and their free time to contribute to open source projects in so many ways. It can be a real time sink sometimes and so they should be praised for all their contributions (code or not).
+1 I completely agree.
For projects with a small number of contributors, this will work well under a Contributors heading on a README page. For larger, very active projects where hundreds (or more) individuals might meet these criteria, this list will be far too large to include on a project README.md file. I'd recommend that you consider spec'ing a separate CONTRIBUTORS.md page dedicated to these acknowledgments and a link to this page from the project README file.
+1 I completely agree.
For projects with a small number of contributors, this will work well under a Contributors heading on a README page. For larger, very active projects where hundreds (or more) individuals might meet these criteria, this list will be far too large to include on a project README.md file. I'd recommend that you consider spec'ing a separate CONTRIBUTORS.md page dedicated to these acknowledgments and a link to this page from the project README file.