[member="Rundo"] - You don't need to promote any flavour of Faction, to be honest, as anyone can post a Bounty - and we've got IRL and IC examples to draw from. All that needs to be done, is have people post their Bounties in the requisite sub-forum, which requires them to invest their time in filling out the template and hitting submit. If they don't want to follow through with that, then, there really isn't a point in pushing the matter further.
When it comes to the hype level between Major and Minor factions? The onus is on those involved in their respective factions, and shouldn't be a concern of the Bounty Board.
Mercenary's only easy for me, because I did the leg work to popularize my outfit. Anyone that puts the work into something, will likely see returns on their effort down the road. So, as like the line before, that's not really a concern of the Bounty Board either. lol