Me again! I've noticed a lot of people are confused about what Hiveworks is offering and are scared about losing their number of readers. As an affiliate, Hiveworks spent $2000 to advertise for me my first year. I have a few thousand subs here on Tapastic (after getting exposure through Hiveworks for my other comic) but my other comic site has about 15k individual users this month according to google analytics. Isa (Namesake artist) offered to be my editor and my work improved. They also have an online store where you can sell any merchandise you might have.
They take a cut of your ad revenue only after you hit $1000 a month. It is not reasonable to expect high gains your first few years with ANY webcomic, but I at least can pay a bill or two with comic money now. It really does just depend on how many pages you have to start with and how well you can attract and retain readers. If they think you will earn them a return on investment they will likely take you. Being exclusive is really not that bad, and literally any other publisher would expect the same. Unlike many other contracts, you can choose to cancel the contract at any time. If you do not feel comfortable with the hive you are free to leave and you lose absolutely nothing.
A while back they had to write up some quick guidelines for a previous session of open submissions in which they disallowed gore. This was because they were being sent extremely graphic violence that they did not want to see, and they have since changed submission guidelines. If your comic involves violence that has a point and isn't just gore porn then you still stand a good chance as long as they are interested in your pitch.
I have heard people elsewhere complain that they only sign on comics that are already popular or people they are friends with and that certainly wasn't the case with me. Tigress Queen probably had a few hundred subs at the time and I didn't know anyone who was part of Hive. I was simply a fan of some of the comics on their network and just happened to notice their submissions were open when I was working on a new second comic.
I would say that if you want to make a career out of comics you stand a much better chance on Hiveworks (or at least with another publisher) than you do on any open platform site like Tapastic. This month I made maybe $30 from Tapastic, but about $130 from Hiveworks. Tapastic is great for starting out, it's great for casual creators, but if you are serious about comics then go to a publisher.
Best of luck to those who are submitting!