Replied to Star GitHub repos on favorite as well as like · Issue #1345 · snarfed/bridgy by Ryan BarrettRyan Barrett (GitHub)
Sounds like this change would need to happen in that WordPress plugin though, not in Bridgy, right?

I’m not so sure. The plug-​in uses a different property for each (like-​of vs. favorite-​of) and there’s some argument that they mean different things to users and are treated differently on different systems, though I don’t think any system currently uses both. So a POSSE gateway like Bridgy should consolidate both to a single property for systems that do that, but preserve the ability to keep them separate should a different (or newer version) receiver distinguish between the two.

In any case I think the plug-​in should preserve the existing properties authors have already added to posts rather than lose information by consolidating their meaning at the source.