Huh? Facebook is hardly the dominant messaging platform, and if they shut down parse why would that lend any credibility to their messaging app platform?
I always enjoy the irony of a comment like yours which criticizes my comment but itself adds no value to the conversation and instead is "meta-whining". Unlike my original comment, yours has added literally nothing to this thread, and now that I've replied to you, you've catalyzed more off-topic meta-nonsense. Thanks!
Pretty much different UIs for the same graph at this point, surely?
The actual Facebook platform isn't the bunch of notifications end users are variously served, pushed and aggregated through different clients - the FB platform is their graph, and that thing is pretty impressive.
Facebook Messenger, WhatsApp (a facebook company) and Instagram (a facebook company) make Facebook the dominant messaging platform with billion+ MAU.
Heck FB Messenger and WhatsApp are the #1 and #2 services and Facebook controls 3 of the top 6 by monthly actives...