Paru - Don't mind, 95%+ of Minecraft server ports are either 25565, 25566 or you can connect to the server through an IP that doesn't force you to specify the port!
PX - Just for the destruction/restarting of this server? Sounds more than reasonable!
Sky - Don't worry about anyone taking away too much fun by using /lightning or starting fires in any other form! Thanks to the fire nerf, instead of just needing to use a flint&tinder a single time to clear out an area of trees for what would've been my home, I had to use it so many times, I ended up using the entire flint&tinder until it disappeared, and I still had about 25% of the trees remaining! Fire really was nerfed very, very hard.
Paru again - Now there's a thought! If everyone had mod powers just for this destruction party thing, if we also had access to WE, filling a large area with TNT in seconds instead of hours would be as simple as /i 271, left or right click, move somewhere else, left or right click again, //set 46, (Or, if you wanna do it in a silly way, like filling up a cave system but leaving the already solid parts of the cave intact, //replace 0 46), /i 69, set it down and go for it! :3 Depending on how large the area in question is, without those commands, instead of just taking seconds, it could take anywhere from several minutes to several months to do all that!