This story is fabricated bullstuff. Here's why:
1. Any pvp server you go on will be running the Factions plug-in, which means you wouldn't be able to mine through the top of their base.
2. If the pvp server you were on DIDN'T have factions, the, "Best group on the server" would have no reason to build their base out of obsidian because it would serve no purpose as people could just mine straight through it.
3. You called the faction SKULLS as some sort of substitute name, but there's no reason to.
4. According to minestatus there's never been a server called SacrificePVP, Sacrifice PVP, or any server with the word Sacrifice in it.
5. Why would nobody else detonate the TNT for several days and just ignore it until you got on? Obviously if you were banned afterwards there were admins and other players on that would definitely blow up the TNT.
6. If the server is small enough so that nobody would blow up the TNT, using worldedit to turn all the dirt and stone into TNT would crash the server.
7.
They had crap loads of stuff. It wasn't even funny. Max enchanted gear, all the blocks, everything. And on top of that, It was in the END WORLD. They were practiclly invinsable. Until now, bitch! :
You changed the location of where the base was mid-sentence.
8.
I came back. Nothing had blown up! Great! The TNT was still there too. All of SKULLS was there too! And the admin!! Time to finish my ultimate WIN.
"Hey guys, let's go back to that base we had the admin change to TNT three days ago! Also let's invite him there to have a party!. "If you're going to make up some completely fake story, at least lie better.