Thanks for the mention! Your support and comments are very much appreciated on Appetite for Distraction and throughout the Steemit comics community.
I think the licensing and rewards discussion you bring up is interesting. We're all still developing the social norms of the Steem community. I'm inclined to feel that as long as you're not taking credit for the work, and you properly and prominently link to the official site of the artist involved, there's not an inherent need to share post rewards or decline payout. This view is coming from a content creator, albeit a content creator who is already on Steemit of course!
When we share content to Steemit in such a manner, we're not truly monetizing the content, but we're actually monetizing our act of sharing it and the attention paid to it. It's a fine line, but it deserves discussion and distinction.
An artist who sees posts on Steemit spreading their work and raking in rewards should be the most incentivized to set up an official account and take that market for themselves! Having an official account also will give them the actual leverage to down vote posts that reproduce their official Steemit content, as opposed to appropriately using resteem and sharing functions that would properly reward an author on Steem.
While I say there is no inherent need to share post rewards, I do think it's a great way to support your favorite artists, and to market and invite new creators. Rather than decline post rewards, I favor setting that reward aside with a public mention that those Steem are transferrable to the content creator at such time as they join and create a verified Steem account. Alternatively you can actively cash out that reward and use it to donate to the artist's Patreon, or purchase some merchandise, hopefully with a note describing the Steem based origin of the funds! The creator can be made aware of any "bounty" that has been created for them and choose what to do. I guarantee the decision to sign up and claim some free Steem power will be made easier as the Steem gains in value!
I'm still anxiously awaiting community features. I think they will help with user satisfaction and retention, and at that point I foresee myself truly joining the marketing effort, directing my attention toward comic creator centric online communities and live comic conventions.