Celestialphoenix
Too Much Free Time
100% for charity; otherwise you'll get one hell of a shitstorm regarding who gets what as it rolls back around into mod monetisation rather than pure charity.With the humble bundle type thing, I think it would be cool charging for certain modpacks, and giving half of the profits to the individual modders and half to a charity. That sounds really neat. Especially if it was just like $5 or something like that.
Its not a simple split as mods have/had different numbers of devs/teams, as well as their own addons, api/coremods/componentised modules. Also -without a doubt- many devs and community members will be left feeling sour as their work/favourite wasn't included.
That aside- modpacks aimed at raising money for charity would be a brilliant thing to pursue. [given the scale of the modding community it'll raise a fair bit of dough for a good cause].
Even if we're assuming that some future version of the Mojang EULA would allow monetization, any mod that tried it would be in Pirate Bay faster than you could say.
Piracy itself is not a reason to reject this concept; if it were then musicians/directors/authors or any other digital artist might as well not charge for their work.