Well the fact that Stoneybunny is spamming people's Facebook messages suggests that they're more interested in soliciting authors than readers - that's never a good sign.
Then there are all these red flags on their website:
Stoneybunny Press Website:
Stonebunny Press is currently accepting queries in all categories.
and
Stoneybunny Press Blog:
SBP is open to any and all subjects and genres, though our areas of special interest are genre fiction (sci-fi, fantasy, horror, etc), poetry collections, culinary works and medieval studies.
There is no money in poetry nor (I'd suggest) in medieval studies and the fact that they seem open to every genre suggests that they have no targeted (if any) marketing planned. Most commercial publishers start out in one or two genres, build up their reputation within it and then branch out - they target. If SBP isn't, then it makes you wonder who they're planning to sell to.
Then there's the weird Supporters page:
http://about.stonebunnypress.ca/p/supporters.html
Which suggests that they don't have any real capital behind them. Many publishers find themselves under-capitalised and go bust within 2 years.
According to the SBP site they're planning on selling hardbacks, paperbacks, ebooks and audio. For starters, hardbacks tend to be low sellers - most commercial publishers find it easier to go with either ebooks and then POD paperback or a mix of both (and even then, I'd want to know about print runs for the paperbacks).
Then check out the About Us page:
http://about.stonebunnypress.ca/p/about-us.html
Seems to me that neither Todd nor Melanie Fischer have much commercial publishing experience for print - although they may have good connections for audio books (which don't have a massive market).
All in all, not necessarily a scam but I definitely wouldn't want to be one of their guinea pigs.
MM