Reason why you're encouraged to report these in game, is because anyone could have put that sign there. It is so easy to frame people that I wouldn't put it past someone to screw around and throw down building text screens on other people's stuff. I am not saying you did it, but I cannot accept this simply because I cannot prove beyond a doubt that it is their screen. What I can prove though is you raided a base with a building sign.
5.4 Building & RP House Signs - If someone has a building sign or RP House sign they cannot be raided. If you think they have entities in their building report it to a staff member.
You do not solve habitual rule-breakers by breaking rules to stop them. Sometimes, I can understand the need to take things into your own hands but this is not one of those times. There were far too many staff online that could of handled this and you should of given them a chance. You know that if you fail to get responses you can always message me to come handle/ask someone to do it.