I wasn't. I'm simply too sane to follow BrainFuck developments unless it's something wild and accidentally useful like a 256-core CPU on HN front page. ;) If they've been implemented, authors should've run some of them on the processor to include benchmarks in the paper. It's standard thing to do in CompSci papers on CPU's, compilers, optimizations, interpreters, anything. They usually include something like that.
Right, okay. It stood out to me too, because there are compilers and larger applications targeting Brainfuck, so it seems strange to only choose “hello world”-style programs.
