It is a very good question, but personally I think you should make it completely open for anyone to participate.

I am a big fan of Steem Exclusive Blogs as they show a commitment to Steem, however what we should try not to encourage is alienating anyone wishing to use other protocols.

I am sure we would all love everyone on Steem just to use Steem, but in reality, we should let everyone be totally free to do what they want.

All we can do, is let the Steem Community decide via the Steem voting protocol.

Happy to go either way and will support the consensus of the other Sponsors.

Keep up the great work.

Stephen