Apparently I was banned from the Creative Server, although I have only visited the server once about 3-4 weeks ago. The only thing I did was talked to a few people, then I quickly built a double piston extender and left. Here is exactly what is says when I try to join the servers: "Banned: Griefing on C with bigmidge. Sapling spam. nerd.nu/appeal".
Honestly, I have absolutely no idea who "bigmidge" is and have never communicated with them in any way. At first I thought it meant I was spamming in the chat, then I came to realize after reading it meant I most have placed saplings everywhere with this bigmidge person. I don't even recall placing down any saplings, I just built a double piston extender.
I guess that's it. Hopefully this was just a misunderstanding.
Thanks for reading and for your time. : )
- Fleft