I have uploaded the ris files as supplemental files for the papers. Thus people who download pdf's of my papers can also download the ris (which they can set to automatically open the citation into their refernce manager (i.e. EndNote)). I gave the files more user friendly names (Download Citation as RIS), but still think that nobody will actually notice this. It's a bit discouraging that citations are easy to upload to ResearchGate but not so easy (user friendly) to download. Any thoughts?