How is lobbying for a vote illegal.
You weren't lobbying for a vote, you were lobbying for someone to commit an act which is technically illegal. I don't know about how the common law rules on conspiracy apply in the U.S. (and so by implication in Atlasia) so I can't say for sure whether or not your action could be construed as criminal/illegal in nature.
Technically, it's not illegal, it just invalidates your vote.
If the act of editting one's ballot isn't illegal, then how do you usually describe actions which are disallowed by law and carry a sanction or penalty?
In America, if somebody votes for Al Gore and George Bush, they're vote is invalidated, but it's not illegal.
Bad analogy. It's actually more like someone voting on election day, and then they decide later in they day to change their vote, so they go and take it out of the ballot box and put a new one in.
Which definately is a crime, by the way.