Are you seriously asking for an authoritative answer from a few people to tell you what the social consensus is?
That's not how it works...
Anyone smart enough to sharedrop on the BitShares community
is going to be smart enough to host their business model directly on the BitShares blockchain
to enjoy our shared network effect and interoperability.
There's plenty of transaction bandwidth to host every coinmarketcap-listed blockchain on a single common ledger with enough left over for VISA++.
...and the only things more powerful than a social consensus is network effect and Darwinian natural selection.
The only good excuse I can think of is if there is a compelling philosophical difference in what The Rules and Parameter Settings should be.