I’m not sure (really, I’m not sure—maybe it is!) if forum topics are really the right place to address specific misidentification issues like this. I think these discussions might be better held on iNaturalist itself. Though, there is a somewhat similar idea in this topic: https://forum.inaturalist.org/t/help-me-identify-non-experts-welcome/2915
For folks who want to help identify species where at least one of the IDs is Phleum pratense: https://www.inaturalist.org/observations/identify?ident_taxon_id=57190&lrank=genus
Or, to crawl through existing research grade obs to check for misidentifications: https://www.inaturalist.org/observations/identify?quality_grade=research&taxon_id=57190