No way to tell.
As @mattclarke wrote above, a fork can be from a large multi-national or a couple clowns in a garage. In this instance, I think the vice people figured it would be better to run their own blockchain as opposed to be on the steem one. This way they profit.
Steem holders are going to get tokens so we will be compensated and might be just another way to diversify your holdings. The vice tokens could be worth a bunch at some point...or not. I have a feeling they will...porn tends to be big money.
To me the question is what ends up using the SMTs? Obviously the big guys can do their own thing...so what size are going to use the SMT technology to roll out their own tokens?
Ultimately, all the porn companies could end up on that vice network...it seems that are trying to lay the foundation to branch out at some point to non porn companies but would they go there as opposed to steem. I doubt a mainstream site wants to be on the "porn" blockcahin.
Thanks bud!