I've played alot of FTB and have hosted a few servers for it in the past so I have alot of experience with this
It's a great modpack , you can play for weeks and weeks and still have stuff left to do.It's packed with features and there is multiple modpacks that FTB have to offer so we could do a poll on that aswell.
If we make a FTB server we would need to do alot of work to prevent hackers , bugs , glitches it really takes a lot of effort to set it up fully.I can help with anything if needed.Because of the vast amount of mods it really tends to lag / spike quite a bit.All of these issues can be fixed with a bit of effort and messing with the server files.
If we get an FTB server we could set up an external shop for the minecraft server to buy items , claim blocks (these are used to claim land to protect your base) , and custom ranks for the server that will give you benefits to certain items.You kind of need to have ranked items (items that only certain ranks and over can use) otherwise the server will be a lag and grief fest. Certain items such as world anchors and chunk loaders keep chunks of the world loaded even while you are offline so you need to limit those.I could help with this if needed.
Overall FTB is a great modpack packed with fun and it gets people together, it will really help expand our community.