Please don’t do this, regardless of license. iNat is for posting your own encounters with organisms.
Personally I use a text expander to add a comment that asks the person to duplicate the obseration to make one for another organism, with instructions for how to do it. Here’s my generic one for making an observation for a prey item:
Nice! You can duplicate this observation to make one for the prey. Here’s a tutorial for duplicating an existing observation: https://www.inaturalist.org/pages/video+tutorials#duplicate
And you can actually duplicate observations before uploading them on the web: https://help.inaturalist.org/en/support/solutions/articles/151000170790-duplicating-an-observation-on-the-inaturalist-website-video-tutorial