To be fair though, a good fraction of the Minecraft modding community is rotten; especially with mod authors trying to make money from their mods by relying on a reverse engineered Minecraft.

In an effort to make money, they have put clickthroughs to ads that people have to go through to download the mod. Keep in mind that Minecraft is rated 'E' for everyone, the modders are deliberately ignoring the fact that they put children in a spot where advertisers can abuse them.

I am specifically going to point out the 'Feed the Beast' team on promoting this behaviour, and them promoting that modders are the ultimate authority. It's pretty bad that permission has to be obtained from each mod author to include it in a modpack, even if it is just for a private server. It's pretty hypocritical of them, I'm pretty sure they didn't ask Mojang for permission to use the Minecraft game for their mods.

Note that I am not criticising all the Minecraft modders, just the ones who created the current toxic culture that pervades the Minecraft modding community. If you look at other modding communities, say for Skyrim, you will see it is completely different and someone coming from that community to the Minecraft modding scene will be shocked at the awfulness that pervades the culture there.