For most of us, it still is.

So far, the new 'Reactions' button on Facebook is getting a :( from users. 

I get why they pushed the feature out - a more nuanced set of options potentially offers much richer data to mine.

I also get why it's not taking off.  For most of us, a 'like' is simply a polite gesture of acknowledgement - a digital tip of the hat - than a statement of earnest emotion.  Or maybe that's just me.