Seems to be a bit of rebellion towards the multiple votes system operating in this game. It's in place so that the people who the most people find suspicious are at the top of the list. Under the standard one vote system, somebody who a lot of people suspect of being scum may actually have a very small amount of votes, because someone else looks even more guilty. In this system, both names would be there for the king to see.
If you do not wish for people to multiple vote, then explain your reasons to the rest of the players in why you think a one vote system would be more effective, and get them to use it. The rules themselves won't change, but the rules in place don't stop you having a system between you for coming up with a name for execution.
Vote Count
dotLeo: yorkshireblue, sir hammer, fozza gump, laserblue (4)
Yorkshireblue: sir hammer, manic, steve van halen, Happy Axeman (4)
Bluestarsneyes: sir hammer, fozza gump, Happy Axeman, amadjin (4)
Amadjin: bluestarsneyes, Happy Axeman (2)
Sir Hammer: yorkshireblue, billyman, steve van halen (3)
Happy Axeman: bluestarsneyes, sir hammer, amadjin (3)
Manic: fozza gump, billyman, steve van halen (3)
Steve Van Halen: manic, Sir Hammer, yorkshireblue, afroboy, Happy Axeman, amadjin (6)
Billyman: Sir Hammer, Happy Axeman (2)
Quigmaster: Sir Hammer, laserblue, Happy Axeman, amadjin (4)
afroboy: steve van halen (1)
mo1ey: yorkshireblue (1)
fozza: Happy Axeman (1)