We really aren't going to do anything about IRC spam. Just use /ignore [name]. Now if he were spamming TC, whis, or the regular chat, then we'd do something.
The IRC Spam was done because of the server, of the actions done in the server (Also the reason why most of the /whis spam or chat spam).
But fine, if you say so.
Suggestion:
Lumber lock. Lumber prices should not be allowed to go less than a price, like 0,5$ and also not higher than a price, 1,5$.
When doing lumber price relating stuff (building etc.) there should be a random value (1-10) if the random value is <2 (1;2) the price is highered. If the value is other numbers it stays the same.