I have to agree with GenPage's second point. The modding community for Minecraft is just like the USA on the brink of civil war in the 1850's; as long as no one brings up the sectional issues then it just about works. Then, it was slavery that was divisive. For this analogy, it is the whole permissions thing. The community remains divided about it but events are simmering down, until someone decides to bring it all back up again. My personal belief is if someone creates something to be played then they shouldn't try and restrict who gets to play it. It's up to the user to decide how he/she wants to enjoy Minecraft, not somebody else. If I came up to you in the street and said you couldn't wear those clothes that way, you would probably think I was some nutter and tell me to push off, even if I was the original designer of the clothes. The same is true about Minecraft mods/modpack permissions.
Please slowpoke, you have entered into this partnership in order to benefit the parties involved but you really need to reconsider this whole 'approval' thing. I don't challenge your personal beliefs about permissions; its not my place to, however you must realise that further agitation of this controversial issue could prove explosive. While I don't accuse you of deliberately dragging this up again, and of course the way you operate is entirely up to you, you have to admit that there are certain mod authors (not naming and shaming) who are highly likely to abuse any approval system, either for fun, for the sake of a bloated ego, or even for revenge. Decisions are yours at the end of the day but it is not something that I would ever support. You might as well ignite the powder keg yourself and watch the community self-destruct.