I don't know what took them so long. Anecdotally I used to get more engagement on my tweets via the cross-post on Facebook than I did on Twitter. The kicker --

I don't know what took them so long. Anecdotally I used to get more engagement on my tweets via the cross-post on Facebook than I did on Twitter. The kicker -- I was working at Twitter and the people liking them on Facebook but not faving them on Twitter also worked at Twitter (!)