Massively Collaborative Mathematics

Anyway, the question is about combinatorial lines in $\{1,2,3\}^n$ which is just three words with wildcards filled in with 1, 2, and 3 (eg: (111213)(221223)(331233) is a combinatorial line (with n=6) because you have (**12*3) with * replaced by 1,2,3 respectively). I don't know anything about it, really. Does anybody else, and what do think about the ideas going on over there? Do you think collaborative mathematics (in the spirit of Gower's post) is possibly right now? There's been a little attention given to elsewhere on the net and I just wanted to share :3 (a search didn't show its been posted before; sorry if it has).