Because they have no life and want to spread their opinion/artwork and love throughout the world.
The verb for vandal is vandalise. As in "to vandalise something".
It would be comprehensive insurance.
This site is not horrible, but reasons that it could be horrible is that people vandalise answers.
vandals
You have to be 21 to buy silly string, because people vandalise buildings with it
You be really nice and do not vandalise.
You could be arrested and fined or put in jail. You will also have to pay for the damage to their property.
If you vandalise this site you do so at your peril.
The gerund form of vandal/vandalise/vandalism is vandalising.
Many do, and many use this site as a source of reference. Wikianswers is open for all to try and answer any question. There are people that vandalise this site but there is also a group of people that try to weed out these vandals and help others on the site. Unfortunately this task cannot be accomplished as quickly as we would like.
Vandalize (US English spelling) or Vandalise (British English spelling).
Vandalize is the correct US English spelling.The British English spelling is vandalise.