I was thinking of using tags added by identifiers or ID comments as a way of filtering for things such as marine organisms or “seaweedy” type organisms.
My thought now is that it might be a little futile because in order for it to be helpful, a select group only would likely be adding those common grouping and/or polyphyletic tags and comments … and … a likely even smaller group of such inclined users would be filtering for those tags and/or comments.