Tag (@) a project in comments to notify its admins

for what it’s worth, it is possible to add an observation to a project without joining it, using the API. if the point is just to add observations to projects, it seems like the most direct way to do this is just to to change the existing website interface to allow non-members to add observations to a project, if the project allows for that. in the absence of that, i would think the best way to notify curators of an observation of interest would to look up who the curators of the project are and then just mention (aka “tag”) them in observation comments. (to me, that’s no less difficult than trying to figure out what the project slug is, which is probably what you would need to do to properly mention a project.)