I was wondering how this site is being hosted. Is it with Invisions own hosting? Is it with another hosting company? Do you host it on your own computer?
A possibly solution to the spray paint would be to power wash it. I don't know how well it would work but it is an alternative to using Muric acid. That stuff starts to smoke when you take it out of the container.
As for Cubs fans being retarded. That Cubs fan that has gotten past the repeated IP banning mustn't be a retard. Does anyone else know how to do that? I just have one idea but it wouldn't work after like 5 times.