I'm not a streamer, nor a vlogger, so I never posted on dlive. I only ever went there because folks I followed used it, and now they don't, so I never will again.
It's just a streaming service.
Steem is technological advance, and that matters. Were dlive actually decentralized as it's name implied, it'd be censorship resistant, and that would be a technological advance, and I'd care more.
Since it's not, I don't care.
I think that is what a lot of people will do honestly.
From what I have seen:
If you were vested in steem before dlive, most will stay.
If you were not and heavily vested in dlive, most will go.
If you like steem and like dlive, most will dual stream.