Yeah, Musk is his own animal so we have to take all of what he does with a pinch of salt. Good to keep an eye on his antics as the best bits can be used, but not to be led blindly.
I don't use Ecency much. The phone app is the best (only) one out there so I do use that occasionally, but PeakD has usually been my favoured front-end on desktop.
You're right about them integrating, as Ecency has 'Waves' and it should all be combining together. But I guess that's the issue with decentralisation as much as we like the concept.
I'm sure it will all converge at some point…
Cheers!