There are a lot if great bros on this site and they give great info when you need it but you're gonna get shit every now and then. it's all in good fun and more often than not its just a joke. Roll with it.
If I had a attitude I would drop it, I was pissed because I was called scum for being a new user. I don't mind banter and jokes but I think being called scum is abit harsh. I don't know what scum means in your part of the world but round my way it's not something you'd call someone without a good reason.