The context is a template for a wiki page, specifically in a line of instructions for page authors to complete:
Summary of findings, recommendations or anti-recommendations for implementation or further study, ...
I suppose I could say:
... recommendations for or against implementation or further study ...
but as I was writing it, I wondered whether there might be a way to rewrite this to conjoin the nouns instead of the prepositions.
I see this question for the verb form: Antonym of "recommend"