Thank you for asking about project policies and guidance, James. This person was a member of a Huguenot family who lived in the New Netherland area, so there are at least two potentially relevant projects. However, since his life events apparently were recorded in a Dutch church, it looks like the New Netherland project is the logical one to deal with his profile. I am adding a project box to the profile to clarify that.
I regret that I am way behind in granting New Netherland project badges. You do not, however, need a project badge to edit these profiles.
The project has posted extensive information on policies and sources on project pages, including (but not limited to) Project: New Netherland Settlers, New Netherland Settlers Project Reliable Sources, Baptism and Marriage Records of Reformed Dutch Churches of New Netherland, and Primary Sources for New Netherland. This material was posted for the benefit of members, and I encourage you to become familiar with it.
This profile cites only one source, a rootsweb page that appears to have credible content, but does not identify its author and does not cite sources for the specific information on it. It is important to have primary sources on WikiTree (secondary sources like rootsweb pages unfortunately are often found to have serious errors). The usual first step is to look for church records and make sure they are documented in the profile. This man supposedly was baptized and married in the Hackensack Dutch Church, so his records ought to be in the sources identified on this page. The rootsweb page cited on the profile has some citations to research articles that could be consulted, if you have access. Some of the other sources mentioned on the pages I linked above may have other relevant content.