Me and my brother live in the same house, we have our separate steam accounts and we both like to play Toribash. I'd like to play against him, but apparently you guys had to install some retarded anti-multiclienting feature into TB 4.8.
Obvious question, how do I circumvent this? Is this going to get fixed?

I think separate Steam accounts should be taken into account while the game performs this check.

That's planned to be changed in the future update of the Steam version.
Anyway, multiclienting thing wasn't added in 4.8, this version just started showing that someone is doing that.

Learn to read before making a comment. You should re-read the post a couple of times before posting.

Just yesterday I was playing with my brother on the same server.