MacGyverMagic/Mgm (macgyvermagic@gmail.com) [050519 07:05]:
Sorry, I somehow clicked send before I could finish the message. In plain English that means, someone else with the same Internet Service Provider got this IP adress during one of their wikipedia visits. It probably wasn't you, but we still had to block the IP in order to stop this person from committing vandalism. We're sorry for the inconvenience it caused you but we can't do anything about the collateral damage such a block causes. Please be patient and continue your good contributions.
*splutter* Sorry, I thought you were asking for an explanation in plain English ;-)
- d.