I’m for approve, with suggestions on the project description pages information.
I recommend refinement to the project description. It was not clear until reaching the final activity after agreeing to join that the project’s only data collection is a questionnaire. This may be the setup of the CSCW paper that I expected there to be more than the questionnaire.
At first read of the CSCW document which is more “a rational” of why the questionnaire should be conducted rather than a guide of what activity will take place. Describing further on the activities on https://www.openhumans.org/activity/ubiqomix-microbiome-exploration/ might help recruitment by not requiring a clickthrough. A simple summary or teaser leading to read more in the PDF than is currently sparsely provided. It may also be worth noting that there is no interface to use or review, but is based on past involvement with the activities.
One yellow flag to think about on trust of this project’s legitimacy is that the contact email address is @gmail.com not wellesley.edu or any other domain associated with the project. Nor is this project linked from the associated website to assert a relationship that the project is related.