Either way, I did nothing that goes against the rules in any way, "get lost" means "go away" and that is not punishable anywhere in any sort of forum. especially if it's a reaction to someone swearing at me on my videos.
All moderator decisions are supposed to be based on forum behavior, not YouTube. Both of you were arguing on the forums and if you hadn't caused issues in the past, I would have let both of you go with a stern verbal warning.
However, since I have warned you about your wording/behavior in the past, I chose to issue you a warning. This warning is normally 6 months but I took other factors into account and leniently gave you 3.
As I have mentioned: if you would like to dispute the way the situation was handled, please contact @Kan. I have already supplied reasons for my decision and only he can overturn them.